Akers was a huge loss.
A strong running game is critical to what the Rams want to do on offense. So much of the off-season discussion about Stafford was that he rarely had an effective running game in Detroit. A lot of posters here questioned whether Henderson was a good enough #2 RB. He's going to need help. Maybe Jones or Funk can contribute. However, I think the Rams must add a veteran RB by the end of Pre-season or early Regular Season; and I think they know it.
All that being said, Urgency could make the right move more difficult.
There's no reason for McVay to publicly express any urgency. That would serve no purpose. It could undermine the current (young) RBs on the roster; and make a minor transaction more difficult. If a team has a RB on its bubble and sees urgency from the Rams, getting that player could be more challenging and costly.
So the way to play it is exactly how the Rams are playing it ... publicly state "Don't panic, all is well."
Sean McVay is personable and engaging; and just like the miserable / obnoxious / ugly fuck that is Bill Belichick, McVay says Nothing. He just says nothing in a much nicer and more charming manner.
RBs tend to come available. "That Guy was Cut!"
C.J Anderson was just out there ... released twice during the 2018 season ... got picked-up and fit in great.
If a team is ready to move-off a veteran RB, it may be happy to get a 6th round pick from the Rams instead of an out-right release. However, the Rams don't want that team ... sensing desperation ... asking for a 3rd or 4th round pick.
I don't know what type of RB the Rams may target. My guess is that they will look for someone with a running style that fits what they want to do. Akers and Henderson struck me as one-cut-and-go RBs. I don't think that someone like Le' Veon Bell fits that style.