The Cubs aren't on a winning streak. The Cubs are winning. Please, explain to us why now would be a good time to make Murton, Pie, and Cedeno starters. Because the point is not to be as good as they are, the point is to be as good as they can be, and each one of those guys has a good opportunity to be better than what is already on the team. I'm as happy as anybody that the Cubs have gotten themselves in the race. But to pretend for a second that the last 3-4 weeks of success means there's no room for improvement is just plain wrong. The Cubs have numerous weak spots, and they should look to improve at all of them. With a lack of any super productive bat in the lineup, the Cubs offense needs to rely on as many spots as possible producing, which means avoiding any blackhole type production. With several underperforming spots in the lineup, most notably SS, CF and RF, and the Cubs currently getting solid AAA production out of quality prospects at each of those positions, there's really no good reason not to give one or all of those guys another look, now.