SANTA CLARA -- Jim Harbaugh seemingly can't go anywhere this offseason without being spotted, and Wednesday's latest sighting of the 49ers coach came from Virginia Tech's pro day.

Virginia Tech boasts one of the upcoming draft's top cornerback prospects in Kyle Fuller, but it also has one of the draft's most intriguing quarterbacks in Logan Thomas.

Thomas attracted attention at the combine by posting the best numbers among quarterbacks in the 40-yard dash (4.61 seconds), vertical jump (35 1/2 inches) and broad jump (9 feet, 10 inches). He measured in at 6-foot-6 and 248 pounds, which is a bigger frame than 49ers quarterback Colin Kaepernick (6-4, 230).

Thomas was Virginia Tech's starter the past three seasons, and he was a freshman in 2010 when the Hokies lost to Stanford in the Orange Bowl in Harbaugh's final game as the Cardinal coach.

Fuller could help fill the 49ers' need for cornerback depth. He was a four-year starter for the Hokies, and he ran the 40 in 4.49 seconds at the combine. His older brothers Vincent and Corey also have gone onto the NFL.

Hokies assistant Bryan Stinney tweeted out the news of Harbaugh's presence with a picture of him studying the prospects.

Harbaugh also attended Northwestern's pro day earlier this month, where he put t Eastern Illinois quarterback Jimmy Garoppolo through a private workout.

General manager Trent Baalke has been seen at Florida and Florida State's pro days this week.

Meanwhile, in the Bay Area, senior personnel assistant Ethan Waugh has led the 49ers contingent at Cal's and San Jose State's pro days. Stanford holds its pro day Thursday.

For more on the 49ers, see Cam Inman's Hot Read blog at blogs.mercurynews.com/49ers. Follow him on Twitter at twitter.com/CamInman.