It's box office viewing in E10 on Tuesday night, as league leaders Cambridge United head to the Breyer Group Stadium.
Chairman, Nigel Travis, said, “It’s unfortunate for the Club that we have parted company with Carl after such a short time, particularly as we are a club that tries to preserve stability.
“However, we felt this was in the best interests of all parties and we thank him for his hard work and wish him every success in the future.”
Ross Embleton, Danny Webb and Jobi McAnuff will take control of first-team affairs in the meantime, as they did for an interim period at the beginning of the season.