Target Jose Quintana, Carlos Rodon or Luis Castillo. Adding one of them with Gaus, Manoah, Berrios, and Stripling definitely solidifies the rotation. Gives the Blue Jays enough depth for the rest of the season in case of an injury and a dangerous rotation in a short Postseason series.
Acquire at least 2 to 3 bullpen arms with high K rates and/or late inning experience. Some interesting names include:
Scott Barlow
Daniel Bard
David Robertson
Mychal Givens
Matt Bush
Matt Moore
Dominic Leone
Carl Edwards Jr
A lot more RP arms available as well.