The Jays seem to have just 3 quality starters the way things are going lately.
Halladay, Romero, Tallet.
Richmond has an ERA of about 5.5 since May 1 and Janssen is not as good as he used to be before since he had the surgery to repair the torn labrum on his shoulder. That type of injury is extremely difficult to make a successful comeback from.
Probably most successful comeback from torn labrum is Chris Carpenter in St. Louis; but, he's spent a lot of time on the DL in last couple of years.
Maybe Jays should consider putting Janssen in long relief and bringing someone from Las Vegas in to see what they can do because Janssen has been getting hit hard since he came back.