I would say yes he does have "it"
Definitely had it before the injury, but the fact remains that he did struggle one on one vs Lebron. You can't necessarily blame him (6 inches and 50 pounds is a lot to give up) for not lighting Lebron up, but I think after that series, Rose actually took his performance in the clutch to another level. Of course, he never got a chance to prove it. Lebron's won 2 rings while DRose has been on the sidelines. Even if you have been bashing Rose and his "mental weakness" for the past year, even you would have to agree that that has pissed Rose off a little. We know Rose is an extremely competitive guy. I think he'll rise to the challenge this season, it's just on the rest of the team to back him up.
And on that note of him not having "it" because he didn't play last season, I think that's a load of BS. Rose didn't want to come back until he felt physically able to dominate everyone on the court like he used to, and frankly, if he did come back and didn't do that, many people would've just said "he should've just sat out the season" so the criticism is a little unnecessary. Yes fans would've made excuses for him, but hey, there are some that are making excuses even now. Coming off a serious injury like that, there is not a true right response. If you need a year, you need a year. If you're a freak and only need 6 months, more power to you.