Two things to keep in mind...

First, we've amassed some talent at LBer now; while we can debate Anzalone's health, there's Kaden Elliss as well as Chase Hansen, who had a fourth round grade till a lingering college injury hurt his draft stock...

Second, we're in 4-3 under less than a 1/3 of the time (that's probably generous); the nickel is really the base defense now and other than kick coverage, the modern game has relegated 3 or more LBers obsolete...

And we've got fourth, fifth, sixth round picks where we can add a fifth, maybe sixth LBer that would have talent not only on special teams, but on kick coverage...

Now, Robinson is older, but we have Demario, Anzalone, Kiko, Robinson, Ellis all rested up coming back already that can play base defense as well; not that a LBer can have an impact, but DB, DE is more important...