3-5-2 and player development

In the midst of a bit of bickering I thought I’d ask for people’s views on the potential for player development in 352. I think we may well see it against West Brom (if we have midfields fit :/) and wondered if 3 defenders would allow for the development of Chilwell as a wing back and whether it will benefit players like Mahrez and Gray when we are being more adventurous with the choice of wide players or if it may mean we push them into a more free role behind a striker on occasions.

Ps - with 3 CMs behind, I see much more potential for a nachoVardy combination as I think, at the moment, Okazaki is imperative in a 442, but perhaps less so with a trio behind him.