Auburn led twice Saturday night but LSU scored on an 18-yard touchdown pass in the final minute of the game to slip past the Tigers 26-21.
"I thought we played a pretty decent game" Smith said. "It was a tough loss and it hurts. We knew it was going to be a slugfest, and LSU, hands down to them. They played a really great game the second half. We've just got to get better ourselves."
Getting better is what Auburn's offense has slowly done every week. After a rough start in the first three games, it finally seemed to click Saturday night.
Smith caught a team-high five passes for 73 yards. Dunn caught four for 60 yards and a touchdown. Tim Hawthorne had two big catches for a total of 87 yards. Montez Billings, Brad Lester and Ben Tate all caught passes, too.
In all, Auburn had 250 yards passing against LSU.
"We had a great game tonight passing," Smith said. "We've just got to learn how to put it all together and put teams away early. The better team lost the game. We just have to worry about ourselves and get better at practice tomorrow."
Smith said LSU's trickery, including an onsides kick in the third quarter, caught Auburn off-guard.
"That took a lot out of us," he said. "For those guys to do the onside kick, that really surprised us. They brought it all out the second half, and we weren't really prepared for those guys to come out and do that. But it is what it is, and we've got to come out and go back to work tomorrow."
Smith said Auburn's offense will continue to get better each week.
"We had a decent game on the offensive side tonight," he said. "We have to execute a little bit more. We did great overall. We have to put it all together on defense, offense and special teams and if we do that we will have a great team."
He said the complaints from fans about Auburn's offense this season have been hard to take, but he tries not to listen. He focuses, instead, on just getting better.
"It's been tough, but we have to worry about ourselves," he said. "We've had complaints against the offense every year I've been here. We have to keep getting better and worry about ourselves. We can't worry about what people are saying."