I like Tulo, but the problem with adding him now (at the expense of the team's top prospect) is that you are paying him $100m over five years for what he did in the past, not necessarily what you can reasonably expect from him in his 30's going forward. So right off the bat that should have been a warning flag, especially since we saw Reyes erode before our eyes in a similar fashion. Secondly, look what happened the past couple of seasons with ownership. Made a big splash and then refused to spend more to put the team over the top. What's the point of having Tulo, Donaldson, Bautista, Martin, etc, if ownership is going to cut spending from there?
That leads to the final point, and that's the rotation after this season. Buehrle's gone. Estrada's gone. Dickey might have to be brought back just for lack of options but he could be gone. Sanchez is in the pen and likely better off over there. Osuna will hit his career high in IP this season and it will be as a reliever, so there's no way he'll be ready for a SP workoad next season. Stroman will have missed an entire year. Norris took a step backwards. Boyd is a #5 starter or a reliever depending on who you ask. There's just so many question marks on this team, and so little in the way of affordable young SP talent that help will need to come from outside the organization. That costs money and/or more prospects.
If you play for 1 or 2 years, that's all you'll get in a best case scenario. The Jays should be trying to build a sustainable winner. That won't happen if they keep trading top pitching prospects for $100m contracts attached to 30-somethings. This deal is not as bad as the Marlins/Dickey trade, but shouldn't be grouped with Donaldson either. It's somewhere in between. Much like the Jays over the past 20 years. Not bad, not great, but somewhere in between. The treadmill keeps rolling.