"Anchor RB" or "Hero RB" question

According to the data from some best ball sites,this strategy has a really high win rate.so,if that’s the case and you choose to use this,who is the lowest ranked RB you would be confident drafting as your “Anchor RB”?

For me it’s Chubb/Zeke. Once i’m looking at Aaron Jones, Joe mixon, and ekelar, I still to pivot more towards other positions. IT may be unfair to Jones, he’s been really, but i’m not ready to buy in to a first round pick for him.