re: Why does Ingram take touches from Thomas?

First, the Organization needs to realize a ROI for the trading up and making him a first round pick.
Second, PT seems to break down when getting the full load. MI takes some of that load to keep injuries down.

In summation, Getting Mark Ingram in there kills 2 birds with one stone.

I do agree though that PT is running very well and wish that he could hold up with the full load. As you said, he's the complete package, receiver and between the tackles runner.