Schultz had a 2-1 record with seven saves and a 1.69 ERA in 16 games for Buffalo prior to his promotion, and believes he's more prepared for the big leagues than he might have been in the past.
"Last time, I think I let the excitement kind of take over a little bit," Schultz said. "You need to have that little degree of extra excitement in order to perform, especially when the adrenaline gets a little stronger than you want it to be. Right now, it's kind of a little more comfortable.
"It's kind of weird to say, but coming back up another time is definitely a little easier. The excitement is the exact same, the anticipation is the exact same, but being a little more comfortable will hopefully bode well and be much better this time around."
Copeland, a rookie, made two scoreless appearances for Toronto prior to being sent back to Buffalo. The 27-year-old right-hander has gone 3-1 with a 2.43 ERA in six starts for Buffalo this season.
"He just wasn't pitching, so bring up another power arm," Blue Jays manager John Gibbons said. "We don't really have a true long man, but [Ryan] Tepera can throw some innings. We should be fine. Cope's still in the plans, but our starting pitching had been pitching so well so there weren't [opportunities]. He'll help us again."
Gregor Chisholm is a reporter for MLB.com. Read his blog, North of the Border, follow him on Twitter @gregorMLB and Facebook, and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.