The Saints are currently winning without him playing at the gadget position, so I don't think it's critical to put him in that position in order to win. However, I can't imagine Taysom being happy if he is not on the field playing and just waiting for Drew to get injured. My belief is that he will resume his role and if Drew gets injured Winston will finish the game since his style is more similar to Drew's, so he would fit in better at the scheme for that weeks game plan. Then, if Drew can't return for the next game Taysom would take over and the game plan be set for his style.