I get what you're saying, but great FAs don't really exist. Daron Payne is about to be franchised, several other players will be as well, and guys like Conklin and Elgton Jenkins were re-signed. When you sign anyone, odds are they are going to be "good-not-great". Just the nature of free agency.
I think Jawaan Taylor and Dre'Mont Jones are the type of guys you want to spend on. Young, good, durable, and just hitting their primes. I'd give those dudes 4 year deals for big money all day. The rest, I would agree. Though, I don't see TE, LT and QB as issues and they aren't places the Bears are going to add anyone super significant.