Robertson and Willis Today

I'm a little surprised the Tigers are bringing Willis back on short rest today, especially after watching him pitch through such obvious back pain and stiffness last Thursday. They probably want to get as many looks as they can at him; but I would have rather seen them wait and give him one of the Thur starts to see if he could go beyond 3 IPs and maybe get through 5. I'd also like to see if Robertson could get through 5 today. I don't know what the Tigers can really see in two more 3IP (if that's what they do) stints from these guys today - it's time to see which of the reclamation projects can get you 5 decent IPs in a start.