I wouldn't push him right now at this point, but I probably would eventually.
There's a lot of upside to McIntyre: He's a young guy at only 28 years of age, he has a great look, he's a good sized guy but he's also athletic, he's very solid overall inside the ring and he works really hard with whatever sort of situation he's given. What needs to happen with McIntyre, in my opinion, is that he needs to break away from 3MB so that he can start out fresh. Personally, I'd start him out fresh by putting him on the undercard and steadily working him up through the ranks. I don't mean putting him in a series of a couple minute squash matches on Superstars, but give him some solid exposure on WWE television to start off maybe with a brief feud against someone like Justin Gabriel. Initially, I'd probably book McIntyre as a really aggressive tweener and have his character adjusted going forward if fans simply weren't responding all that much. Maybe book them in a couple of 10-12 minute matches on Raw, maybe one on SD! and ultimately blow things off by giving them a strong 20+ minute match on Main Event. Based on how well these matches are received, perhaps move onto someone a little higher up like Wade Barrett with a series of matches and also give him some time on the mic. If things go off well, maybe put him up against someone like Fandango, especially if McIntyre is doing well with the aggressive tweener persona and is connecting solidly with fans on the mic. After that, maybe move him into a feud against someone like Kofi Kingston. Again, if things go well, then I'd probably move him into position for a feud with either Axel or Ambrose for a mid-card title.
I wouldn't push McIntyre as a Paul Heyman guy because, frankly, it seems that making someone a Heyman guy is becoming a crutch that a lot of posters are leaning on. I think Heyman has done great work since his return to WWE, but Heyman isn't some automatic golden ticket to the main event. There's a lot of potential in the WWE mid-card picture, a lot of talented guys, but everybody can't be a Paul Heyman guy. Because it's becoming such a common response, it's really coming off as a "lazy booking" kind of idea in my eyes.
I like McIntyre and he's someone that is, overall, far better than he was when he first showed up in WWE. He was pushed hard and pushed too soon, in my opinion, with a character that didn't really allow him to shine as much as I think he MIGHT have been able to and in a spot that he wasn't ready for. He did his best, which is always an admirable trait in any wrestler, but it was pretty obvious that he just wasn't ready to be IC champ at that time. I think WWE could do something with McIntyre if they give him time and build him steadily over a good period of time. When WWE takes its time in pushing & establishing someone as a threat, the results can often be extremely good.