So, Eller being Eller, the upgrade would have to be, more points from Galchenyuk, and an assumption he is going to play center, and the upgrade is expected to be "player acquired" over Plekanec?
Don't think you are a math guru... the return by trading Pleks, has to be greater production and player than Pleks, so how does that happen, and how does that pertain to Pleks bringing the best return as the main reason to trade him?
How do you upgrade Pleks without actually adding pieces to get an upgrade over him?
Or are you in the same bus as 30/31 saying Pleks is a no show in playoffs, so any 50-60 point center is an upgrade?
Plekanec is definitely one of the best 2 way, and #2 centers in the NHL, period. Trade him and you are likely to weaken the top 6...
Habs need a winger than can score, especially when the chips are down, that's the improvement to the top six that would make the greatest improvement, and leave Pleks where he is...
Defense won the Blackhawks the cup, and Bergevin has addressed that with the Petry and Beaulieu signings, and we have good depth at D, so I think we are already a better club, than most of last year, to answer the thread's original question, a winger that is capable of scoring 20, and helping the PP.
Trade DD and whatever else works to get that winger, and voila, we are better.