Zafar Gohar and Umer Khan will have to come into scheme of things at some point. Problem which Pak has is that the only two somewhat decent all rounders we have are spinners in Imad and Shadab.
You cant have a specialist spinner playing with them unless you compromise on batting depth by removing one of them or you play only 2 pacers(Not an option).
Not having a decent pace bowling all rounder means we dont have much roam to experiment with specialist spinner. Though Zafar Gohar, Umer Khan and anyone who emerges in between the WC does deserve some chances to know what they can add and if they add enough that Pak can forgo batting depth to play one of them. By the way Zafar can bat decently too.
Look, I think the point on spin bowling alrounders is completely relevant. However, after this year's PSL I have a feeling that Shadab is leaning towards become a batting all-rounder or indeed a batsmen who can bowl spin (ala Shoaib Malik). I think, if he works on his off stump game, that's not actually impossible. If he does, it frees up the space for an extra pace bowling all-rounder.
I hope that lads like Abbas Afridi may well be that candidate. I think Hasan Ali after his back issues will orient more towards becoming a batting all rounder as well, as the potential is there.
Such a scenario would allow specialist spinners to come into the fold. I would personally like to see Zafar Gohar and Umer Khan given a go in Tests and T20s respectively. Clearly lots of ifs and buts!
However, I also hope to see Usama Mir and Mohammad Mohsin develop. The impression I got in the PSL was that they both didn't spin the ball enough and I saw a distinct lack if variations. I'm happy to accept that that's mire because of the format than their true abilities.
Sajid Khan has usually been suggested as a decent shout as the only upcoming off spinner in Domestic cricket. He has a strange action and he still needs atleast one more strong domestic season to press his claims.
Mohammad Asghar, from what I've read o this forum, seems to have regressed. Happy to be corrected on this.
Lastly, really interested to see how Arish Ali Khan develops. That boy can spin the bowl, however it'll be interesting to see how he develops with another season of domestic cricket. Didn't help in the PSL that Azam Khan was consistently picked over him in the QG side, due to their wafer-thin middle order.
Doesn't help that's he's yet another left-armer in a sea of left arm bowlers (Imad, Nawaz, Umer, Zafar Gohar, M Asghar)