Consensus from who? There was not a single football analyst, scout, pundit, or anything else who didn't think the Cowboys needed a RB from the draft. Yeah I know, media, blah blah blah, but the prevailing opinion from just about anyone not wearing blue and silver glasses is that you can't replace Murray with Darren McFadden and some guys who have never done anything.
If you want to think it's fine, good on you. But not to acknowledge that it is a massive gamble to have a guy who has averaged 3.35 YPC the last three years (when not hurt), and 3 other guys who have a grand total of 243 carries in the NFL between them is a lock to be an above average group, no matter what OLine, is flat out ridiculous, If the FO is being honest with themselves they have to understand this is a huge throw of the dice, and so should you.