I hope Imran khan doesn’t bring his sons into politics, and promotes on merit. One candidate that should be given more of an opportunity to grow in the party is Shehryar Khan Afridi. (I don’t know this person personally, I’m just basing my opinion on the work he seems to be doing)
An additional factor is the need to build decent relation with Afghanistan, and considering his background, he may be able to connect with them on personal terms which is how they do diplomacy. His surname also hold significance, due to the Martial history of his ancestors.
This is why he should be given more opportunities and his management style honed. He also has the human touch, which many will appreciate.