I'm basing my current WW decision on experience dealing with the Shanahan's for the entire lifespan of father and son's Coaching careers.
Once in very long while, a RB comes along like a Terell Davis or a Clinton Portis, who is capable of handling most of the pie. When that guy comes along, he eats.
I'm not 100% saying Sermon is that guy, but IMHO, he profiles as the closest thing to it that this backfield has seen in the Kyle Shanahan regime. He's the only RB worth a significant investment, IMHO.
I wholly and completely believe Sermon did something knuckleheaded; that Sunday was punative; and that whatever it was, it's water under the bridge, and Shanahan/Sermon are moving forward, and Sermon will be featured sooner than later. When he is, it's my opinion that he will seize the job, and the job will be the lion's share of statistical output from the RB room.
I'm not spending a dime on Elijah Mitchell, right or wrong. If anyone in any of my Leagues drops Sermon, I'll go to great lengths to acquire him. While everyone is spending on Mitchell and Hasty, I will spend pennies on Jeff Wilson, where he's available, but only if he goes for pennies.
It is a system that yields results, and Elijah Mitchell has some foundational skills that lend themselves to the system. Great. Sermon does as well, and his profile, IMHO, is the most likely to yield a featured back.
I might be wrong, but that's where I stand, but I'm OK with it.