With the possibility of a Roy Halladay deal still lingering, there's little question that the Blue Jays' actions where he's concerned will have a major impact on the rest of the 2009 season. Not only would any trade give his new team a significant boost in its race for a playoff spot, but the vast majority of the Jays' remaining games -- 53 out of 69 -- are against the eight American League contenders with records above .500. A revised look at our strength-of-schedule rankings shows that Toronto is tied with the Orioles for the most difficult second-half schedule. If the Doctor is in, the Jays are primed to play spoiler. If he's out, not so much.