Ready to play still takes a while. It seems you're trying to suggest he could have made this easy fix by just loading up on JC guys and transfers all at once as if that's easy.
It's still byu. There's still a ton of missionaries, most of whom take a year or so to be able to contribute after.
He's done a pretty good job for just now being at 4 years. Even Bronco at a place with no missionaries was still playing last year with mostly recruits from the previous staff.