Richard Jefferson's athleticism may be regressing but he's still one of the most athletic on our particular team.
Have to keep in mind he's more of a stocky forward than a quick-like guard, and matched up against other forwards, he's not a bad option.
Jefferson publicly admitted to having a disappointing season, I'm sure he understands. Hopefully him, Popovich, the Big-3, and George Hill, all continue to gel enough to where Jefferson in time gains more of a Tayshuan Prince type of role as far as chemistry and Points Per Game (Prince was typically around the 3/4th scoring option in Detroit, but effective).