Bresnan's performances have definitely been affected by his injury but, by the same token, I also think that he over-performed massively in the early stages of his test career and they would have tapered off in any event e.g. has an early 30s fc bowling average and 27 fc batting average so you had to figure that his form was never going to be sustained
He did make his FC debut aged 18, although I'm not sure how much he would've played as a teenager, Cribb to confirm. Importantly though, I think all who saw him will agree that Bresnan improved massively throughout 2010. I'd like to see him really get stuck into the Championship before he's back for England though. Keep him in the county circuit until the Champions Trophy and then if he's been performing in the, what will be several games for Yorkshire by then, then he's a shout.
I'd definitely be considering Onions ahead of Finn for the NZ series, and even Woakes at 7. I just haven't been impressed by Finn in test cricket over the last couple of years. He's had his moments, Lords against the Saffa's and Kolkata the most obvious ones, but I just don't think he does enough with the ball to really cause issues in test cricket at the moment. And for all the talk about his pace, he's not bowling any quicker than Bresnan was pre elbow injury, and the latter could swing both the new and old nut. Finn doesn't even have the knack of picking up cheap wickets like he did in Australia anymore either.
Tremlett's Championship return this week was far from encouraging, but it was probably a typical flat Oval wicket. Nonetheless, I probably wouldn't really be looking at him for this summer unless he starts doing something spectacular. He's probably got to go to Australia, but I don't even think he's among the best three options when he's fully fit and at his best for games in England.
So long story shot, I'd want Bres as the 3rd seamer if he does well for Yorkshire in the first half of the summer; if not, Onions. Regarding the batting; see who's done better in the Championship by July.