Laffey was officially moved to the bullpen to make room for right-hander Brandon Morrow, who will be activated from the 60-day disabled list prior to Saturday's game against the Orioles.
The transition likely won't be a long one, as the Blue Jays fully expect to move to a six-man starting rotation once the month of September rolls around.
"We'll continue to re-evaluate things for the next time through the rotation, if his insertion back into the rotation is needed," Blue Jays manager John Farrell said. "At the same time, we're probably leaning towards a six-man rotation, so his presence in the bullpen is for a defined period of time and we look to go to that six-man rotation in September."
Laffey has made 11 starts for the Blue Jays this season, posting a 3-5 record and 4.78 ERA in 64 innings. He has thrown six quality starts while surrendering three runs or less in each of his past two outings.
The area where Laffey has struggled most this season is keeping the ball in the park. He has surrendered 13 homers, which has proven to be his undoing on more than one occasion.