A bit of both. We haven't played well defensively, leaving way too many open 3s (see Vandy's first three attempts in OT), not making quick adjustments (see Vandy's hand-off offensive gameplan that took us a while to adjust to), we go spells where we get away from our own offense, and then we have a recent tendency to go into cold spells (Schofield is a prime example over the past couple games). We also have struggled to maintain early leads recently. Hot starts followed by mental lapses and cold shooting.
Beyond the physical part of the game, we are certainly getting people's best efforts. Winning in the SEC isn't easy. Winning on the road is even harder. We own 3 road conference wins now, two in close games. We are being tested, and the game tonight was the sign of a championship team. Down 6 with 1:18-ish to play, and we find a way to win.