First strategy should be to bowl first & try to restrict opponents to a manageable target. More than batting, PAK's fielding starts with 25 runs handicap, therefore this batting line up will need to put over per targets for the bowling unit, if they are batting first.
While chasing - I think, first PAK (Arthur) needs to talk straight to few players (shouldn't name, but they are not unknown) - NO SELFISH GAME, get on or get out. After many, many years, PAK actually has a decent batting depth with may be Hasan Ali at 10/11 - this has to be cashed in; which can't be done if players coming early takes 35 balls to reach SR of 58 in today's game!!!!
May be the batting approach that BD uses is perfect fit for PAK as well. We don't have any Butler, Afridi, MS or Maxi in later half, hence our strategy is to sniff around the asking rate & take the advantage of batting depth - an asking <7 is probably manageable for up to our No. 9, provided that it's not too much & for too long. Our batting strategy is perfect - there are 2.5 accumulators spread-out accross the line-up perfectly - Tamim at 1, Mushi at 4 & Mahmood at 7. Rest whoever is selected, are actually asked to keep up the tempo & not to bother for losing wickets. Soumya, Sabbir, Sakib, Mosaddek & Nasir/Kayes are instructed to go after, no matter what's the situation. May be, without Afridi & Umar, this is the only option left for PAK - Babar at 3 & Sarfu at 5 should be the only 2 players that should play to hold one side (but not literally holding it with both hands), rest must maintain a decent to dynamic strike rate or get out, so that next men have enough time left. I don't see, a 100 ball 70 from top 4 helping current PAK side & a 38 ball 23 by top 4 won't help even Australia.
Bowling is fine as long as catching is decent. PAK attack can NEVER bowl to restrict scoring - that disciplaine is not there. It'll end exactly like the WACA match - lots of tight/good balls, then one rubbish in between, that's dentined to go for a boundary + healthy support from extra - batting side will cash on those loose ones to keep wickets at hand & inch closer, before the final charge. Rather trying that squeezing tactics, bowlers should back their strength & hope for the best - that's keep attacking with catching fielders & try to get 10 batsmen out; be it bowling first or second.
For Sarfraz, unlike other PAK batting Captains (invariably defensive, to a level of being scared & timid with very little clue of bowling changes or how to use knock out punch to get a batsman out), MUST have to trust his bowlers, to get him break through a & he must be ready to accept embrassing defeat in quest of a win, rather than "honarable" defeat in quest of saving face. Only time, I saw Misbah overcoming his fear of conceding runs/boundary, was the WC match at Auckland, and the result wasn't bad - that match should have been catalyst for team PAK - unfortunately, it had to be delayed by 2 years for a selection blunder.