Why? You wouldn't be able to get the most out of that pitcher for the second half of those 100IP and run a greater risk of injuring if they end up throwing out of the pen in the 1st half of the year. Or if you have Marshall at Iowa to start the year, you're defeating the purpose of saving his arm. If it's Marquis as the #5, his greatest asset is that he has a rubber arm and will eat innings (assuming he's not shelled thru 4). As far as Marshall/Lieber, they would be wise to keep a closer eye as far as not leaving them out there well beyond early signs of fatigue. With Gallagher, they could be more liberal since he is sound mechanically, good size, and has a clean bill of health. I hope whoever wins the 5th spot will stick throughout the year. Even if Marshall was completely healthy, I don't think you can risk him going beyond 170 innings this year. That's 25 more innings then he has ever thrown in his career, plus the only 2 times he's gotten to 110-120 his arm has gone dead at that point. I'd actually be surprised if you could get 140 fresh innings out of him. They took him out many times early even when he was effective last year, and they still couldn't get a full season out of him. I love his production, but I seriously question his durability. Plus, Marshall has had his share of arm injuries as well. With Lieber, if his injury problems don't act up I'd be fine with getting 180-200 innings out of him. I'm just not sure if he can pitch that long without some sort of injury. It's possible, but with his history I'd call it unlikely. My plan would be to start Lieber and to throw Marshall into long relief, either in the majors or AAA. I know it's probably not fair to him to do it that way, which is why I'd leave it as just the ideal. Marshall's innings are then somewhat limited by the nature of his position, but he also doesn't pitch multiple days in a row and pitches for longer, minimizing the chance of injury. He then steps in at whatever point in the season Lieber goes down or another starter becomes ineffective.