Menzinger
Kessel4LadyByng
Management doesn't do it either. It's simply not in their blood.
Keeping Brown & Nylander in the AHL isn't in an effort to lose games, it's in an effort to keep them away from the toxic environment that is the NHL team. It's an eye towards long term development, not "this is how we'll lose more games".
I don't know how you could look at the Leafs roster and say it hasn't been put together to lose games.
I've got no issue with keeping Nylander in the AHL for the rest of the season - saves his ELC until next season, but he's definitely ready in terms of playing ability. If management wanted to win more hockey games this year they could inject skilled players anytime they want - they're choosing not to.