Southern Miss (21-17) lost Tuesday night to nationally ranked LSU (28-9-1) and are .500 in their past eight games, but remain in second place of Conference USA standings.
"The bottom line is we couldn't keep the momentum in our favor and that's what lost us the baseball game. We didn't defend the ball like we need to," head coach Scott Berry said after the Golden Eagles 13-5, loss to the Tigers.
The game was tied 5-5, heading to the bottom of the third, but LSU pulled away in the fourth and held Southern Miss scoreless the rest of the game.
"I think you can go back in the first inning when we didn't field the bunt and that led to a big inning. That's three times in four games that we've done that.
"We have not fielded that bunt in that area so we've got an issue there that we certainly have to work on and get straightened out."
USM takes on Louisiana Tech (10-24), Friday at Pete Taylor Park. Game-time is set for 6 p.m.