KNOXVILLE -- Anyone could have watched the Tennessee Volunteers last season and quickly surmised that they needed better quarterback play.

Even the most casual UT fans have become well aware of the lack of wide receiver depth, with only six healthy scholarship receivers on the active roster.

Most Southeastern Conference fans could probably tell you that some of UT's highly publicized winter recruiting snags -- most notably running back Bryce Brown from Kansas -- are potential immediate-impact players.

But coaches, players and die-hard fans scan the full field in search of potential problems.

Here are four under-the-radar Vols who could significantly strengthen the team with big camp performances or become target areas for opponents to pick on the next several months.

1. Nick Reveiz

The walk-on son of former UT All-America kicker Fuad Reveiz, Nick quickly established himself as a hard-working, hard-hitting middle linebacker after arriving on campus in 2006.

Size has always been a question, though. Reveiz probably would need stiletto heels to reach his listed 5-foot-10 height, but he's at least every bit of his listed 220 pounds after several productive summers in the weight room.

"You probably couldn't fit any more muscles on him," All-SEC weakside linebacker Rico McCoy said of Reveiz last month.

Reveiz's size was hardly an issue on special teams, where he was featured prominently the past two seasons, but it could hinder his bid to start at middle linebacker.

"People have always talked about that," Reveiz said. "There's nothing I can do about my size, so I don't worry about it. I just work as hard as I can every day to help the team."

Reveiz could help solidify a linebacker corps that, aside from McCoy, lacks meaningful SEC experience.

2. Aaron Douglas

Several recruiting analysts expected Douglas, a former star tight end at Maryville High School, to eventually grow into offensive tackle.

It didn't take long for that to happen. The redshirt freshman is listed at 6-6, 282 pounds in the media guide, and he's probably closer to 300.

Whether he's physically ready to compete in the SEC trenches is still in question, but what's certain is the Vols need a fifth starter up front with seniors Chris Scott, Jacques McClendon, Vladimir Richard and Josh McNeil.

Douglas might be the best prospect of the potential fifth starters, but he'll need to be better than junior Jarrod Shaw, sophomore Cody Pope, sophomore William Brimfield and others to start this season.

Genetics certainly won't hurt Douglas' chances. His father is former Rhea County, UT and NFL player David Douglas, and his mother is former Lady Vols basketball star Karla Horton Douglas.

3. Chad Cunningham

After filling in for suspended starter Britton Colquitt for last season's first five games, Cunningham will start this preseason camp atop the punter depth chart.

No viable alternatives have surfaced, and Cunningham is the only scholarship punter on the roster, but special-teams overseer Eddie Gran adamantly stated last month that Cunningham will have to earn his starting spot this preseason.

"We've brought in some walk-ons who could potentially take those spots," said Gran, whose Auburn special-teams units were routinely ranked near the top of the SEC.

Cunningham spent much of the summer with his personal kicking coach, working on the problems that plagued him last season -- especially his snap-to-kick time. Few in the program expect the junior to punt like a Colquitt, but he'll need to stay close to 40 yards per punt and 37 net yards to stay No. 1.

4. Art Evans

First-year UT coach Lane Kiffin said he released a depth chart only because the sports information department demanded one for the media guide, and he's consistently dismissed its validity, but at least one surprise already surfaced.

Juniors Dennis Rogan and Brent Vinson were listed as co-starters on the left side, and sophomore Evans was listed solely atop the right-side list.

Evans, a roommate and close friend of All-America safety Eric Berry, was an intriguing high school prospect with impressive physical tools and statistics in a small Florida classification. His 6-1 frame is a plus for the cornerback position, and he has plenty of speed and athletic ability, but it's fair to question whether his 173 pounds will hold up throughout an SEC schedule.