I have them both as well. I also own Turner and MBIII. I am keeping my RB line up as is - LT, Turner and MBIII. I tried the start both SD RB's a few years back when Turner was there and I owned both. It did not work out well. This year could be argued differently. See last week for Sproles as an example. However, I think KC gives SD a run this week. LT will get the bulk of the carries and I do not see Sproles getting the same as he did last week. Just my opinion. Don't knee jerk your line up as a result of how Sproles fared against the Raiders.