Ideally, National selectors should never look for talent hunt - rather they should look for options to fit in a particular strategy. This is more or less in every sports - take soccer; it's the Club managers that find/scout/groom talent; play them in league & the National Manager's (who is CS in Football) difficultly is to find the best players to fit into his system.
For example, say Southgate, somehow grows a pair of balls & decides to play football, rather than a mix of hoof-ball & Yanki style football - so, he changes his formation from static 442 to a more dynamic & fluid 4231 or interchanging 433 or diamond 442. Now, will he arrange talunt hunt program to find a Kante for his holding DM, Pirolo for his deep lying play maker, Hazard & Muller for his winger & Pogba to play behind Kane - OR, he'll pick available best players from weekend EPL matches that fits his strategy & formation?
Same goes for cricket - take this ANZ tour. We know here in PP, so Inzi must know - he had been there at least 20 times; that you need seemers on Kiwi green tops, you need seem bowling all-rounders who'll improve the tail & still be effective with his 120KM dibly dobly, if they can kiss the green top on sweet spot (with ball, that is). In AUS, he'll need couple of express bowlers who can run all day, an offie to cater the 7 lefti in Aussie line up & couple of solid openers who can negotiate the first 20 overs of Kookaburra.
Now, he can't arrange talent hunt program for that. I have only seen in PAK that before every series, they call 30-35 players for camp & try to pick players from there - it's like stop EPL for a week & call 50 Pom foot-laborers for a look & select 23 of them for next weeks WC qualifiers. Ideally, Inzi, Arthur & Misbah should chalk out plan, analyze pros & cons, identify opportunities & best possible formation - then pick the best 16/17 to fit the strategy. For this, they have to bank on domestic stats - no other way.
They can't call 5 offies for a look on who should they pick - just one example. For that, they must have reliable domestic stats - of course individual preference is there, eye for talent has to be there, vision has to be there - how this guy is going to bowl against wind, on bounce, on cracks ...... but also, number has to be reliable. The subjective call should not be about who is more talented, rather based on diversity in domestic wickets & respective stats of the offies, one can take a decision which offie to take to AUS & which one to India. That's same in football as well - if Southgate changes his formation to interchanging 433 - he'll have to pick Henderson & Lallana as these two are playing well in that system at Anfield & fitting the role; Sturridge as well for an interchanging front 3; but, if it's structured 442 diamond formation, may be players from Chelsea & Spurs will get preference & I can categorically say that Kane & Alli will start in that formation. For 4231, he has to bring Walcott ......
At present, PAK's CS job is most difficult & confusing one.