On the old site, I posted stats of how many players go through goal scoring slumps of 7 games or more. It happens to nearly all of them - including Sundin who was one of the most consistent scorers in NHL history.
Part of the problem is that a goal scorer is the guy who has to finish the play. Guys who rack up assists don't go through perceived slumps as much because they can rely on a number of finishers so the peaks and valleys don't tend to be as extreme and nearly twice as many assists get dished out as goals - they're kind of twice as easy to come by.
In my mind, in terms of goal scoring, to score 32 goals playing half a season with Joey Crabb and a bunch of his season with a struggling Bozak, who may struggle to hang on to the 3rd line center spot this season, is a credit to Kessel. I don't think it's an accident that he eventually righted himself with Lupul who replaced Crabb.
If you're a NHL dman defending against the Crabb-Kessel line and devoting a lot of your attention to Joey Crabb, your career in the NHL is going to be a short one. Lupul and Connolly pose a different problem for a dman than Crabb & Bozak.
Very few NHLers have scored 30+ goals in each of the last three seasons so to me, Kessel is already among the 'elite' and most consistent goal scorers in this league. What one's definition of 'elite' is and how "elite" Kessel will be is the only question that remains in my mind.
As for his defensive play, I've never thought he'd be great as a two way player so some of the complaint about his play seems based upon preconceived expectations. He didn't play that way in college. He didn't play that way for the Bruins. He's never been that strong on the puck. He's not great at finishing his checks in part because he's never been a physical player. He's close to a lightweight physically - in spite of what his stats might say. But there's also no question that there's room for improvement. He could imitate Matthew Lombardi with his speed and use that to forecheck better than he has for example.
But to me, his role is a little different than Lombardi's has been for much of Lombardi's career. And his circumstances have been somewhat different in Toronto. Lombardi became his teams top PKer in Calgary and was also that in Phoenix. As the center, particularly in a center high defence, Lombardi has tended to have more of a defensive role.
Phil's primary function is to score goals. When the clock is ticking down and your team is behind, risks have to be taken at the expense of defence. Phil is the guy you want taking those risks because his offensive talents give him the best chance of making something happen. So often in these struggling Leafs seasons past, he isn't looking to play defence per se. He's looking to cheat, take risks and score because he's the most able and his team has been desperate for it.
How many times did we see the Leafs behind and Sundin and/or Mogilny loitering up by the blue line hoping their D could recover the puck and headman it to them so they could get a scoring chance to get the game close or tie it up?
An area I'd like see them explore is Kessel on the PK. If the Leafs are down and on the PK, he and Lombardi, the two fastest skaters on the team, could be quite a scoring threat. It wasn't too good for Sundin & Mogilny in similar circumstances and they made some teams pay with shorthanded goals. Beyond practice, in games where the Leafs have a decent cushion, it wouldn't be a bad thing to test out and give Phil some experience.
Last night, when he was interviewed, they asked him why he was down behind the Sens empty net near the end of the game trying to kill the clock. He said it was because this season, his coach has asked him to forecheck deeper. Some of the change in his first two games of this season came about because his coach asked him to change what he was doing and he did so. It's hard to find fault with that and I guess one might ask Wilson why he didn't ask him to do so when he showed up in Toronto.
Kessel's always going to have problems being perceived as a great defensive player because some folks will have unrealistic expectations comparing him to a Selke winner and because he doesn't tick that way, never has and very likely never will.