that's a huge changes and quiet bold decision from management to make such handsome young combinations for shorter format. I know Pakistan are recently going with one of worst form in each and every format, but yeh some injuries almost runied thier entire planing for champions trophy. Well looking to squad I believe there is huge lack of experience especially in t20 squad, because it's almost a young squad but with few old experience. But may be it benefits them not quick but in near future, and looking to young blood performance most of them were true power hitter so to get compete with modern cricket.
Anyway I think management has better idea for future and they will be responsible for each of thier decision, so let's see how things going. but I believe it's unfair with Rizwan to remove him from captaincy on the basis of ODI performance.
I don't think these changes are going to have any positive impact on Pakistani cricket because in last two years things are completely out of control due to unprofessional approach from PCB all foreign coaches resigned and now things are badly mess up which mean chances are not high for improvement in near future.
Political influence grouping and personal interest giving them setbacks while current PCB chairman is also had no experience how to handle things recently due to bad management ICC Champions trophy shifted from Pakistan to Dubai where no Pakistani Official were available even they were host country. Their domestic setup is also not ideal which help youngsters to improve their skills with personal links are helping while many quality and skilled players are on back foot even now many are shifting in other countries like Imran Tahir and Sikandar Raza for better future in cricket.