I don't think there is going to be that many drastic changes as there was last offseason.
The Blue Jays need to solidify themselves behind the plate. JPA should not be a starter. He'll likely still be on the team my guess, though I'd like to see the Jays sign a solid vet like Carlos Ruiz or even bring back Jose Molina.
A second baseman is needed, most importantly someone who can field. I doubt Howie Kendrick gets moved to Toronto. Personally, I'd love to see the Jays traded for Marco Scutaro or buy low on someone like Danny Espinosa. Scutaro would be a nice bat at the top of the lineup, and if you bring in a guy like Espinosa there's no problem in him batting 8th or 9th.
The Blue Jays likely will go after another starting pitcher. Dickey, Buehrle are here to stay, and so is Morrow. I'm worried Happ is kept as the No. 5 starter but we'll see. Don't see the Jays bringing in an ace, though someone who'll likely provide 200 quality innings. There's not much on free agency, since its going to cost a lot of $ to sign Garza. I'd like to see the Jays make a trade for Gallardo possibly. Other than that, the Jays likely will sign a bunch of guys on minor league deals, as I wouldn't mind Marcum brought in on a minor league deal.