The flip side of chemistry is that sometimes the partnership is decidedly uneven.
Chris Kunitz has been the poster boy for this, and understandably so, because he was mostly a run-of-the-mill second-line player before he started riding shotgun for Sidney Crosby. Steve Yzerman told TSN that Kunitz made the team on his own merit, but a fun exercise is to imagine what Team Canada would look like if Taylor Hall were playing in Pittsburgh and Kunitz were dressing in Edmonton.
Similarly, Jay Bouwmeester went from being a guy at the fringes of the conversation to a definite lock, and it happened when he stopped playing in Calgary and started playing with Alex Pietrangelo. If Bouwmeester doesn't get dealt by the Flames, does he make the Canadian team over Mark Giordano? Does anyone believe the Flames would have been better off keeping the former and moving the latter?
Chemistry has its advantages, and it may help Canada win gold. But it also may have led to putting together a lesser team.