Not surprisingly, Professor Parks with a great breakdown of the Feliz situation. Let's discuss the situation here, as the morning thread often gets fouled.
I still don't see this move to the rotation happening this year. I could very easily see the development of the cutter ninth-inning role, permitting a move to the rotation next year. The oddest situation that I could imagine happening, though not at all likely, is to see Feliz starting the year in the rotation and reclaiming his closer position when Webb is ready. This would give Feliz some extended development time and build his innings for next year, even though it's hard to imagine he would be more effective than a typical 5th starter that might be as good as the options already available for the 5th spot.