I hope it's not that simple and thorough questions are asked about what plans he has for the future if given the job longer term. Di Matteo won Chelsea the Champions League by putting smiles back on faces but he was completely out of his depth the next season, Adkins was a fine manager for Southampton but Pochettino offered a better future so a ruthless decision was made.
Relegation makes the job of developing this club one hundred times harder not easier.