It usually the reason for alot of their losses, id bet in majority of their losses of 3 runs or less they probably left at least 8 guys on base or quite a few in scoring position with less than 2 outs.
I know it sounds silly to complain about a team offense after scoring 7 runs, it just that with this pitching staff, you need these guys to capitalize as much as possible when they have the opportunity, because like today, 5+ runs just might not be enough all too often.