I feel the same way, but I try to keep my vague negativity to myself.
I have the horrifying feeling that we're going to re-sign Plummer, let Boston walk, and end up having to waste our #1 on a WR to replace Boston rather than using it to plug a hole on defense.
Also, I don't think that veteran leaders like Lassiter, Fredrickson, or Sanders will be back.
One way or another, if Plummer is our starter next season, the offseason was a failure in my opinion. 16 more games of INTs that a rookie would be ashamed of, with one or two comeback wins here or there on a way to another 5-11 season rich with excuses.
"Jake was hurt" followed by "Jake needs a better running game" followed by "Jake needs better protection" followed by "Jake needs better receivers".
If we let Boston go, i'm sure that last statement will end up being true, at least.