In Malloy's case I can accept the argument that he would not be able to play everyday in the Tiger line-up and you want him to keep getting the max AB. OTOH, I have trouble with the argument that his D is somehow going to get better faster chasing fly balls at Toledo than it would in Det. Grab a coach or teammate and go out early. Take a field at BP and run down everything you can. It's basically the same level of opportunity whether it's at 5th/3rd or Copa - the where doesn't change the physics. The series are longer in the minors so there is less day to day re-location, but OTOH, you travel 1st class by air in the majors so the fatigue factor is less - that can't be much more or less than a wash.
But that's JHM, Meadows could play virtually everyday, and his defense is purportedly excellent. If you are still a fan of Baddoo's, at this point getting his head straight at Toledo is probaby better for him than continuing to flail at Det. His BA in 70PA since June 1 is 097! You can't even effectively work on stuff in AB's when your failure rate is that high.