It's impossible for anyone outside of the organization to know if Click is part of the disease instead of some type of supposed cure. If he had all of the answers for the Blue Jays pitching development woes I would surmise that these would already be implemented by this point given how long he's been with the club.
I actually think there are potentially enough higher ceiling arms in the minor league system at present to allow the team to eventually improve upon their pitching development. The key will be getting these guys healthy enough to continue their development and eventually have a shot to contribute to the major league team. The recent draft and trade deadline have Yesavage and Bloss as potential replacements in the short term to add to Macko, and the lower minors has players such as Barriera, Rojas, Maroudis etc. as potential longer term options if these guys can manage to get back to full health and remain on the field.