Right now? Probably not. But he will be and soon, IMO. Add on to that he is a lot younger and is cheaper and there is no way I'd trade him for Sharp.
I'll agree that when Cam is hot, he's as good a young player as there is, but he also goes long stretches where he is invisible. If he were more consistent, he wouldn't be the subject of trade rumors.
I think if the defensive upgrade is available, it's the only situation I'd use him in a trade, he'd definitely be gone. He's still a young, productive roster player and any significant upgrade to the defense will probably require he be involved. I like Cam, but if a player like Buff or Burns is available and Cam is necessary in the deal, he's gone. I agree with you though, if it's just for Patrick Sharp, it would not be good asset management to trade Cam.
I'll say the same thing I say pretty much at this point of every offseason. I hope the front office quits talking about making a splash and just jumps off the high dive and make a big splash. This club is close. I think there's some moves to be made that makes this club not only an annual entrant into the playoffs, but a Cup contender in pretty short order. The pieces are there and so is the effort, they need a couple of players to make everything come together.