Not really. Its the equivalent of a 3rd or 2nd round pick which is a pretty decent price for a good starting guard. I think a lot of people don't realize that starting guards just really aren't worth all that much in terms of signing bonus and draft picks. Damian Woody got the biggest contract ever given to a guard/center and his signing bonus was less than Todd Wade's, and not even close to John Tait's. The year before, Randy Thomas got the biggest contract ever given a guard and his signing bonus was only like $7 million. In general, you just don't give up that much for guards because they come a dime a dozen.
If we did this, I would hope it would be because we can convince Welbourne and his agent to accept a deal that involves a lot of incentives like we did with Ricky. If we did it, then you could say that we have upgraded at 4 out of 5 positions on the offensive line. Unfortunately, thats still not good enough, because you can upgrade the interior but if the tackles aren't sound you go nowhere.
I would trade down like this if Andrews is taken. If not, you take Andrews. You can deal with mince meat at guard. You can't deal with mince meat at tackle.