It seemed that Vanderbilt was on its way to playing an almost complete game in a moment that could have been a big one for the Commodores’ postseason resume. And then it was not. Vanderbilt led 4-1 going into the bottom of the sixth inning. Offensively, Vanderbilt was attacking Alabama starting pitcher Tyler Fay well with seven hits on its four runs. Defensively, it was playing perhaps even better. Vanderbilt starting pitcher Connor Fennell seemed to be in a rhythm through five innings. And then, the moment that changed the whole complexion of the game occurred. Vanderbilt head coach Tim Corbin took Fennell out after surrendering a single to Alabama’s Brady Neal through 5.1 innings. Jacob Schulz came in for the Commodores and walked the only batter he faced on four pitches. That was just the start of the downhill slide Vanderbilt experienced in its 5-4 loss, though.  Luth Guth entered the game in relief of Schulz and gave up the three-run home run to Alabama’s Eric Hines on the first pitch he threw.…