Pep's caught between the devil & the deep blue sea. He wants small & the highest quality for squad harmony. We see what happened with Sterling, Jesus, Cancelo, Laporte & Zinchenko wanting more game time even if their form suggested they didn't deserve it.
The problem with a small top quality squad is rest, rotation, injuries, suspensions, loss of form etc. It only takes 2-3 players to fall into those categories during our hectic schedule, & we're in trouble.
It's high a risky strategy, but one which has largely worked until now. The issue is, I think Doku & Gvardiol apart, we've traded down this summer, which limits us more than we've been used to.