There is a baseline level of competency you need at each position to be successful. QB play is obviously the highest baseline and most difficult to reach.
I do think you can team-build in a way that emphasizes certain positions and skills over others, but the baseline for every group exists.
But I think having it low at receiver necessitates a higher baseline at tight end and offensive line. I think RB is the lowest baseline no matter what, but you can still have a good running game if you have a good O-line.
There is just not one correct way to team build. A lot depends on your QB’s skillset and your coach’s comfort level running different offensive and defensive systems.
Whatever that baseline is, it's pretty low at the RB and WR positions. Look at what the Patriots have done, or the Giants when they were winning.
I don't know, if you replace Chubb/Hunt with baseline/lower tier players we would've been lucky to win 3 or 4 games this past year, IMHO. Some of prime Maurice Jones-Drew's teams in JAX would've arguably been 0-16 caliber without him. And the difference between the Rams with prime Gurley last year and broken-down Gurley this year was staggering.
Although...with Adrian Peterson, he led a team to 3-13 in his prime in 2011, and 2014 they went 7-9 without him after going 5-10-1 with him the prior year...
As far as TE goes, the Pats have been able to do just fine many of the times Gronk and the deceased serial killer have been out.
I agree on the baseline level thing. You can't have MoMass and Robiskie be your top options.