If the Bears truly are adding their qb in the draft and the major ones are all gone before they are able to pick, don't over draft a qb. Just don't. Bolster the OL at the Tackle spot, because if 5 or so qbs go before the Bears pick, then some serious talent will drop to them. If they have tried and tried to get the qb spot right, but are not able to by trade or FA, then they should absolutely build everything around the qb the best they can. You never know when a decent vet or so can be traded for, or then the Bears may have more ammunition to make that trade.