Rask has nothing to do with it, and was only a factor for a few games. I mean, if Rossi can't outshine Rask, that says it all, but it's not really the case.
Rossi looks like an above average AHL player....a first line AHL player, but by no means the best in the AHL. He has scored a lot of points, but is 36 th in total scoring. Players like Jack Quinn are outproducing him at a far greater rate. He also is below average in strength, even for the AHL. His skating is good, but straight line speed is slightly above average for the AHL. FO's are mediocre.
Rossi might do better with the puck on his stick than Gaudreau, but I wouldn't bet on it. Gaudreau is much faster, and can skate out of trouble, whole Rossi would get caught from behind. Rossi is significantly weaker than Gaudreau, a worse defensive player, and worse on the dot. Rossi has a better shot, but can he get to scoring areas in the NHL to use that shot, or will he get outmuscled and outquicked there, a la Teemu Pulkkinen?