The Colorado Rockies have a plethora of young pitchers that can, and will, make at least a few starts for the Rockies this season.
With those young pitchers, none of them have shown previously that they can pitch more than the 168 innings that Jon Gray pitched in the 2016 season. Part of the reason is due to their health but that is part of the reason why the Rockies should do this: less innings means less chance of getting injured or overworked.
With only using five starters in 162 games (which almost never happens), it would give two starters 33 starts and three of them 32 starts.