It's going to be very interesting to see just who TMO supports as the GC starts to shake out. Sinkewitz turns 26 this year, and has 1 Tour participation, finishing last year. I think you're right, he's probably the future of TMO.
I'm guessing T-Mobile will support Kloden, as the veteran, unless it becomes obvious he's holding Sinkewitz - or someone else - back.