Yep. I've made the argument on this board for a long time that some guys are built for the regular season and some guys are built for the playoffs. The guys who wilt when the game turns into a war are the ones you don't want playing leading roles on your team, even though they might be very effective during the regular season. Big Joe just doesn't carry his team to the promised land. As a second line center on another club he might get there, but not as "the guy."
(A version of the above argument was why I was always against Pommer as Sabres captain)