Bartolo Colon was available for a 1 year deal. He's a veteran innings-eater who would have been a perfect fit for the Jays who are looking for additional starting pitching, but at a reasonable cost. Colon was a 2.9WAR pitcher last year and while you cannot expect that next year, he would have been good for 150 innings and brought stability to the #4 spot in the rotation. A 3.57 XFip last year for only $2-3MM seems like a missed opportunity.
Here's hoping the Jays take a chance and bring Rich Harden in on a similar deal. The upside there for that price is worth the immense injury risk that Harden brings to the table.