If Arthur was given full authority, he'll bring following changes in ODI (LO) squad (most of those, I can't tell his mind, but I do understand his game philosophy, besides next 2 ICC events are in UK & AUS for his benifit)
1. Change Sarfraz as Captain - not that he is against Sarf, but Captain should make the XI on playing merit and Captain must be good at one core job to lead from front. WK as Captain is a disaster, unless you are Sanga, Gilly, MS or AB - these are WKs good enough to play as a batsman, just in case, it becomes too much for them to handle triple role. Besides, each of them were extreme fit for the work load and quite good at WKeeping. He dropped Shaun as Captain at 32 (when he was fit enough to bowl 29 overs in a day), for a kid - he'll do the same here as well and groom his Captain. For that, he needs someone whose at least best 4/5 years in the game is still left and who is fit, so that the Captain can lead from the front and can be invested for long. He would prefer a younger Captain for sure - Amir, Babar, Hasan comes to mind; even Shadab has a good shout, but 27 is probably the max allowable age. For a team like PAK, Captain needs to be fearless - as Mike Holding will often say - my Captain allowed me to express myself.
2. He'll reduce the average age of the squad significantly - hardly any player over 29. Take out MoHa, Malik, Azhar & Sarfraz (Wahab & Irfaaan as well), replace with 4 U23 players (say Talat, Saud, Farhan/Saad & Ruhail) - that brings the overall average age down by 2+ years. May be, in future he'll keep few over 29 players - that's only because Misbah era changed the definition of PAK youngsters to be 29 years at debut - ideally, Hari, Fak, Umar, Amin, Sharjeel, Maqsood, Imad, Fawad .... should have been 5-7+ years veteran by now with good amount of experience in their tank - some of them would have been on orange light by now, instead of green (trying to find a space in squad......)
3. He'll bring several players from the last 2/3 U19 WC teams & around - Afridi, Iqbal, Ali Zaryab, Ruhail from this squad; may be Zeeshan, Umair Masood, Badar & Hasan from previous one, Saud, Gohar, Amad from one more back and may be few from outside WC (Nasir Newaz comes to mind). Not necessarily everyone has to be in squad, but he'll create a pool of may be 35 players to start with - at least half of them U23. These are his first filter - every year few oldies (& few disappointing youngsters as well) will be churned out, while new kids in block enters the frame - that'll keep the average age perfectly level, and keep the competition high. Simple philosophy is - if an oldie (35+, on biological age) has to be in squad - HE HAS TO DELIVER EXTRA, AND STAND FIRM IN CRISIS (exactly opposite to MoHa in this regard) - otherwise, that resource has to be invested for someone U23 - if there is a short of young talent, one has to create something from potential, instead of roaming around circles. YK was one such senior (in Test), and I did support him till his last innings; would have supported his appointment as Test Captain for a year or two after Misbah as well - that would have DEFINITELY saved a certain 0-2 in UAE.
4. He'll create a like to like competition - that's at least 2 players for every spot; may be one buzurg, other one has to be "inexperienced". He'll never do is a 38 years old, backed by a 35 years old. Or Captain dynamic 30, deputy good boy 33 ...these are official age, by the way. Rather it's possible to have a 23 years old as back up of a 25 years old. These are like role profile back-up, not Ul Haq's style squad. For example - Amir is his premium new ball bowler - he'll pick may be 3/4 other pacers for the same role - say, Sadaf, Arshad, Hamza and may be an unknown guy (Umaid Asif was perfect, had he been 12 years younger). Similarly, Hasan is his 1st change & finisher - back-ups could be Afridi, Shinwari ..... Same goes for all-rounders, WKs, spinners (for his weakness, he isn't too cool to handle the spinners, but to his help, next 2 ICC events don't need Nawaz like spinner/all-rounders either). But, a squad will never have Hasan, Shinrai & Raees ........ then Captain rowdy opens with Fahim & Yamin............
5. He'll form the team on combination - that's the total player value of a combination, rather than individuals. LO teams are built on combination, rather than individual player value - 2+2 has to be 5 there, because of the short game distance. In a 5 days, game all 11 has some period to come into game, but in LO, one has to be flexible - change in order, change in attack, change in fielding strategy ... are too frequent & instant - one needs flexibility. For that, he'll ask for a balanced, versatile squad so that he can rotate his squad - no more in total 3 pacers for 8 games series.
6. He'll pick horses for courses, batsman for particular positions, bowlers for particular condition - not that best 6 batsmen makes a better ODI line-up, neither 4 bowlers - rather it's how they fit in the strategy. I see, 3 distinctive role profile of ODI batsmen - top 3, 4-5, 6-7 - batsmen making lots of runs from top 3, might be obsolete at 4/5, or 6/7 and vice verse. He'll pick batsmen (& back-ups) by role - that might result in 4th highest scorer of domestic Cup might not be finding a place even in 16 men squad, if the prior 3 are also openers. Besides, he'll definitely look for SR, rotational ability (% of singles), hitting ability (% of boundary) before picking player (s) for a particular spot. Recently, I was reading someone suggesting Asad at No. 5, because he has scored lot in Domestic Cup (from opening) - that's simply foolish. Besides, he'll liberate PAK cricket from the curse of Misbah era batting philosophy - players have to score on back foot, on the rise, with horizontal bat and through off side.
6. He'll encourage multi dimensional players - that's every player has to improve in his weaker side, and improvement in fielding is must for everyone. It's like, at least some contribution in the game - specialist tail-end bowlers have to improve their defense, to support set batsman; bowlers with decent batting potential (Hasan, Amir, Yasi, Afridi ....) has to improve their hitting power, all-rounders like Fahim, Yamin, Shadab has to improve their bowling, so that they can be trusted with ball. Current Pom team has tremendous batting depth, because their bowlers are decent bat, while Stokes & Moeen has improved their bowling good enough to be one of 5 bowlers. Few top order batsmen have to develop a bit of bowling intelligence, so that they can be used in crisis. Misbah killed Yasir, but hardly used Azhar or Ahmed or Fawad/Maqsood (may be to keep MoHa's bench warm) - that's inflexibility from short slightness. Besides, Arthur'll create few specialist fielders (among batsmen, who doesn't bowl, therefore can be kept at critical spots like 1st slip, point, short mid wicket for full 50 overs) - none can be Johnty, but no reason why 3 batsmen can't make point, extra cover & short mid wicket their own.
7. He'll bring versatility in his squad/starting XI - that's good mix of left-right batting combo and variety in bowling so that captain has options. Couple of years back, there in NZ, PAK played one ODI with 4 left arm pacer, a SLAO darter (Imad) and a part-time leggi (Azhar) - for me, that demands straight sacking then & then for the CS, Manager/Coach & Captain. PAK was bunnied by every SLAO spinner (none more than Herath), often having a batting line up of 11 right handers & spinners taking ball away from them with 6-3 field for whole day .......
8. He'll create leaders in the squad out side the Captain - it's like bowling leader, batting leaders, some one to keep the fielders on toes during fielding. A senior pro can contribute more in team strategy not being Captain, because as Captain, he is responsible for the result - as adviser, he can express himself. PAK Captain's best resource could have been the guy over burdened now - history tells every great Captain had a great WK as his go to guy, because WK is the centre spot of the field - at one time he watches most part of the game, being involved in almost every actions, and he watches his bowlers as good as the batsman (actually better, he gets more time), he watches the batsmen from behind and he sets the field positions (distance based on carry of the wicket - BUT, hardly any great WK was every made Captain, even deputy on permanent basis, because the role is rowdy, not a thinker's job.
9. He'll set a strict fitness standard (& measurement criteria) - there won't be multiple standards to give Captain pass marks. Besides, I am sure he'll set different fitness criteria for different role - fitness of a specialist batsman and a WK batsman can't be measured on same scale; that makes Ul Haq & Sohaib as good (or bad) on fitness.
10. He'll set measurable KPI for his squad (may be internally - outsiders don't need to know that). For example, MoHa's NZ series is the highest level of statistical manipulation - 60 (71) & 81* (80), while batting first and set a well below par score; while 1 (9), 0 (4) & 6 (20), while chasing - and at lest twice, it was quite a reasonable target set by bowlers. For stats, 148 (184) for a stats like 37.00/80.43 is exceptionally good for a side humiliated 5-0 and 4 out 5 times simply being out classed - these are worthless stats, as fake as Zingira made (Dhaka's famous machine tool's factory - grey market for stolen parts) van. This won't be sold to Arthur - he'll tell his boys what is expected, and how the success will be measured - "homework gate" didn't go well for him, but that's one thing essential for this PAK team, where almost everyone is playing for himself.
...enough for today
who was never a mainstay of batting except in helping UAE conditions 
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