A decision on Wilson will be made by Friday morning concerning his availability for the game with No. 1 Alabama. The Hogs play host to the defending national champs at 2:30 p.m. Saturday in Reynolds Razorback Stadium.
"I'd expect some word (on Wilson) at the latest tomorrow morning," Smith said. "A decision has to be made."
To questions about Wilson's absence Thursday after doing some work in Wednesday's workout, Smith said, "He was busy."
He was just as vague to questions about the race to fill in for him between Allen, a redshirt freshman, and Mitchell, a junior.
"I've got no answer right now," he said. "Right now, they are tied."
How did the backup quarterbacks handle the week?
"They are excited to go to the field," he said. "It's been a good week for both. You prepare, prepare, prepare. That's what they've done. Everyone would be excited for their chance."
Smith said it was a good week of practice. He noted that "chins were dragging" early in the week, normal for a week after an upset loss. The Hogs lost 34-31 in overtime to Louisiana-Monroe.
"We had a good week," he said. "Tuesday was great compared to some other Tuesdays. Yesterday was good. Today was OK, but not as sharp as we'd like. Overall, it was a good week."
Smith was asked about the starter at fullback after the Hogs lost both Kiero Small and Kody Walker last week. Would it be Grady Ollison, a converted offensive tackle who played there in the opener on two goal line plays?
"In some packages, yes, he'll play" Smith said. "But the starter will depend on the situation."
Smith said there was a "stomach bug" going around during the week. It apparently bothered offensive tackle Brey Cook, battling backup Jason Peacock.
"Brey would practice and then go to the sideline to throw up and then be back practicing," said Smith, who noted, "Hopefully, we get a little more out of (Peacock)."
With Mitchell getting more work at quarterback, Smith was asked who would step up at wide receiver. Mitchell is listed first on the depth chart at one of three wideout spots.
"We are counting on (Mekale) McKay to continue to get better," he said. "Julian Horton has stepped up and he's trying to push his game."
Linebackers Tenarius Wright and Alonzo Highsmith were on the field for the entire game against ULM. Is there help for them in sight?
"It's the young guys," Smith said. "That's Otha Peters and A. J. Turner. We have to get them more work. Those two are going to be good players. We want to make sure they get some snaps. Those first two got 103 plays. It's been like that for a couple of game.
"They are like Ollison. We have to keep working them. They are going to do nothing but get better."
At cornerback, Smith said the rotation will include Darius Winston, Kaelon Kelleybrew, Will Hines and Davyon McKinney. Jared Collins, originally on the redshirt list, also got work this week.
"We are getting him ready should we need him," Smith said about Collins.