But even if Spriggs falters at some point, Wannstedt has said he does not want to move Wade, who was so impressive as a rookie last season.
Wannstedt said that if a switch needed to be made, it would involve Mark Dixon moving from left guard to left tackle. Backup guard Heath Irwin would then be the logical choice to replace Dixon at left guard.
"We definitely will not move Todd Wade to the left side," Wannstedt said. "We're happy right now with how Marcus is progressing. It's early yet, but if we had a problem late today, I'd be more inclined to move Dixon out from left guard to left tackle and move somebody up."
Dixon played left tackle for the Montreal Alouettes of the Canadian Football League before joining the Dolphins as a free agent in 1998.
Another option at left tackle, should Spriggs falter, is rookie Brandon Winey. But it might be too much to ask the sixth-round pick out of LSU to step into the starting lineup right away.