There's no denying the Packers have made mistakes evaluating the outside linebacker position over the past few years. There's no moving on from either Matthews or Perry at this point of the season though.
There might be a slim chance Gutekunst will be able to acquire a decent edge rusher on a reasonable deal before the deadline.
Upgrading the position should be the top priority next offseason though.
Why bother adding any stop gap players on defense at this point??
We aren't going anywhere, and it's unlikely we keep most of the guys we have now.
Just roll with what we have, and look at rebuilding the position next year.