Eagles cycle through a lot of OL each year, you think they're all receptive to Stoutland, or does he weed out the ones who won't take to hard coaching?
Now, difference is most NFL contracts aren't guaranteed, or only for a short period, so it's easier to weed out players. I think that insecurity also makes it easier to motivate NFL players, while guaranteed money leads some NHL players to resent being pushed out of their comfort zone (I'll out last the coach).
When you look at the players who didn't get along with Torts, practically all of them played worse away from him, Dubinsky out of league, Johansen a cancer where ever he went and so on.
AV was a much bigger asshole, once in his doghouse it was over for a player (ask Ghost, Voracek, et al). Gallant was such a schmuck he couldn't last 3 years with three different teams.
Everyone seems to be in Tort's doghouse at some point, but two weeks later it's ancient history (unless you screw up again). He's old school in that he likes to push players out of their comfort zone, but he's not a Buddy Ryan or Chip Kelly type bully.