In situations like this just let it go!!!!
Just imagine that Sele strained something in his previous start and asked the manager for an extra day of rest. It happens in real baseball. Try to remember that this is a BASEBALL SIMULATION program. I bet that I can find a similar situation in real baseball that equals every so-called screw up by the computer manager. I've seen enough strange things in real baseball that nothing surprises me in the simulation version. I even welcome the anomalies, it means its even more like REAL baseball!!!