Graham Westley has returned to Stevenage for his third spell as manager of the League One club.
Preston North End sacked Westley as their manager in February, but he has been granted a quick return to the game by his former club.
Westley replaces Gary Smith, who was dismissed earlier this month after a run of 14 defeats in 18 matches.
The 45-year-old previously managed the Broadhall Way outfit between 2003 and 2006, before returning to the club in 2008 for a five-year stay.