No you CANNOT edit the CPUs lineup. I've answered this in other threads. Here my last post on the matter...
"Regarding not being able to change the CPUS lineup. You DON'T have to make a ton of different game saves and load whichever before you play. All you have to do is set the lineup BEFORE you play. This takes like 5 seconds. Management --> Pitch Rotation --> EDIT to your liking, and back out. Seriously, it takes like 5 seconds."