Attempting to continue the development of a young, inexpensive player (who I believe is eligible for waivers) who has generally shown he can stick in a bottom pairing role is better asset management than putting a 4 million dollar, injury prone guy out there and praying he both returns to form and doesn't miss another 60 games when his back or shoulder or who knows what else fails him again after another routine hit or play.
Gus is going to be 25 in two months, he's not exactly at the age where his development is really a concern. As far as Mez and his $4 million price tag, if he fits under the cap, his contract is 100% irrelevant. $4 million in the pressbox is exactly the same as $4 million on the third pair is exactly the same as $4 million on the top pair. Same thing with injuries. If he is healthy, the fact that he MIGHT get injured is irrelevant. It isn't like I am talking about signing him to a long term deal. In that respect, money and injuries are absolutely a concern. But he is signed and he is healthy. So money and health are irrelevant.
That being said, I once again revert to my argument that is clearly insane: 500+ games prior to an injury carry more weight than 60 average NHL games. Especially when both players have played at about the same level all pre-season.
The kind of injuries he's suffered and missed extensive time for are the type that can completely trash a player. Ask Parent about his back injuries, for instance. Or, how is Gagne doing after missing lots of time for injury? There are very few players who miss significant time over a few seasons and return as if nothing happened. I don't see how Mez is worth the risk, his ceiling isn't high enough to begin with compared to his cap hit.
I'm not too sure I ever said he would return as if nothing happened. I think I said he could possibly get back to the form he had two years ago. And again, when a guy is already on the roster, it isn't a "risk" to play him because he isn't worth his cap hit or he might get injured. It would be a risk to sign him to a long term deal, I agree. But no one is suggesting that. I am only suggesting, like I have been all offseason, that if Mez and Gus are both on the roster opening day, that Mez plays. He could lose that spot at any time, but it is his spot to lose.
The proven but injured player does and should have the benefit of the doubt over the unproven unheralded player. Again, he could lose that spot due to poor play (or good play from Gus), but he doesn't lose it because Gus might maybe one day if given the chance possibly be a low-end top four guy based on what we have seen from 60 games over three seasons where a lot of them were pretty good but some weren't too good but he is only 25 and probably maybe one day will be better than Mez because CORSI says so.