Bennett's game has always been there. He's not a big time scorer and that didn't really change going to Florida. His minutes and PP time went up. His style of play of being a nasty disposition, hard 2 way player was there in Calgary too. He always showed up in the playoffs for them.
IMO Kakko doesn't play a hard enough game to be a bottom six guy here and be successful. Then he's not nearly skilled enough to be a top 6 forward in the NHL. Which leaves him in kind of a no man's land. If the Avs played a different style in the bottom 6, maybe he could be successful here in that role... but his game just isn't suited to how the Avs play in that role. He'd likely end up a bad 2nd liner here.
Kakko's the new "I can fix him" Pizza Boy.