By Matt Hladik For four seasons, Cam Johnson was a key contributor at Vanderbilt. Now that he’s in the transfer portal, another SEC program is reportedly in the driver’s seat for the 6-foot wideout. According to 247Sports’ Clint Brewster, Ole Miss is “out in front” for Johnson. A four-star prospect in the class of 2018, Johnson has two years of eligibility remaining. He hauled in 34 receptions for 327 yards and four touchdowns for the Commodores in 2021, one year after posting 56 catches for 545 yards and three scores. Johnson had 30 receptions for 316 yards and three TDs for Vandy in 2019 aft…