This staff didn't slim Fouss down in the offseason like Pope was trying to do the previous two season. (And it never worked out — cuz both years he ended up getting hurt early & putting the weight back on to finish the season, anyway. Maybe a sign it was never such a wise plan.)
Fouss can run & jump surprisingly well for a man his size & build (he's got a huge core & relatively small legs), but it's a lot more taxing & risky affair for him than it is for a guy like Keita.