This has been discussed so often on this site and people still obviously don't understand it...I honestly gave up, because it was clear that the majority of porsters weren't able to process the difference between "zone read" and "RPO" even though it should be clear.
Although - you do have the modern version of the triple option built into the RPO game - meaning, when run at a high level you have the option to give, keep, or throw - I don't think we have seen that part of our offense yet due to its innate complexity. With a compressed install, it has been clear that Lashlee wants us to rep our base concepts over and over while we ramp up.
I have to think we're going to see King keeping more as the season goes on. It may be as simple as trying to lay out a false / baiting tendency on film (Lash seems like he could be the type to do something devious like that) while keeping King healthy. When the game plan calls for it, maybe we start seeing King taking off more on the zone read. Not saying that is for sure the case - but I think it's at least a reasonable thought.
He's had 8 carries in each of the last two games...I can't imagine he'll get many more than that going forward though. Maybe 12-15 at the absolute most, including the off-script creative plays.