Not to sound pessimistic, but the folks excusing or overlooking our poor offseason by pointing to possible internal improvements seem quite myopic to me.
Let's be realistic for a second. We have one of the oldest teams in the majors (I think 2nd oldest). We had good injury luck last year, especially on the pitching side. We won't see much help from the farm.
So while it's possible, if everything goes right, that we might come out ok, the far more realistic scenario is that the teams around us, who are younger, have better prospects, and didn't have the injury luck that we had last year, will see much more internal improvement than we will.
And as far as Vladdy goes....if he wasn't a Jay but some guy playing on one of the more obscure NL teams, and you looked at his player card and saw his 5 seasons, 4 of which were remarkably similar (~.800 OPS) and one great (1K OPS)...would we not find it logical to assume that the one season is the outlier and the most reasonable expectation from him would be another ho-hum .800 OPS season?