"Zack Stewart has been on our radar for a long time, particularly last year, when he was doing some special things in Double-A," said Williams of Stewart, who was ranked by MLB.com as the Blue Jays' fourth-best prospect. "He's shown us he has four average pitches and a power changeup to go with the 90-94 mph fastball with sink and fade on it as well."
Williams believes Stewart will be in the Majors in some role before the end of the 2011 season. He also compared Stewart's big league preparedness to that of John Danks when the White Sox acquired the southpaw from Texas, despite Stewart's 4.20 ERA for Double-A New Hampshire this season.
"We see where he was last year," Williams said. "He's had a couple of trips up, and we've been able to identify exactly what we think he needs to do to realize the talent that he is."