The Bears are only #7 because the Jets and Panthers haven't played yet this week. There is a good chance they will be back in the 9 spot by tomorrow night.
Unless there is a real top end offensive lineman available at their pick, I wouldn't be opposed to trading down in the first round and maybe picking up another 2nd. They need talent across the board and having 4 picks in the first 2 rounds would definitely be a good start.