Know each species traits and place in the system first. YP are both a predator and a prey species so replacing them with a minnow is not an equal comparison. I would not leave out the YP but might add another minnow. My guess is you will be short on forage. Lets hope that drives all species to prey on young BCP. PS , YP ,BCP and to a lesser extent SMB can all overpopulate and stunt. I have not heard of WE doing so but it could be possible. The biggest risk of that happening is BCP by a wide margin then PS.

Craws are a good addition