Georgia Tech B-back Marcus Marshall has tried particularly to address two areas of his game in spring practice, ball security and blocking. The former, according to Marshall, has particularly improved.

“I haven’t had any ball-security issues, and that’s what I really wanted to work on,” Marshall said Saturday following the team’s 12th practice of the spring.

As a freshman last season, Marshall had three fumbles, contributing to the team’s 36, the second most in FBS, according to cfbstats.com. It was a significant difference between the 11-win 2014 team and last year’s 3-9 team. Despite playing two extra games, the 2014 team had 20 fumbles.

“We’ve worked on it in practice, keeping it high and tight,” Marshall said. “It’s something that I’ve had to be really conscious of, just trying to make it a habit, just keeping it high and tight no matter where I’m at on the field.”

Marshall led Tech with 654 rushing yards, the first Tech freshman to lead the team in rushing yards since Joe Burns in 1998.

Marshall was not quite as satisfied with his blocking.

“Blocking, I still need to get better and I’m going to keep working on that,” he said.