Hartlepool director of sport Chris Turner has resigned from his position with immediate effect.
Turner returned to the npower League One club in the newly-created role in 2006 but assumed control of first-team duties following the departure of Danny Wilson in December 2008.
Pools narrowly avoided relegation last season following a three-point deduction by the Football League but have started the current campaign in decent fashion.
They recorded an impressive win over Sheffield United in the first round of the Carling Cup and have drawn both of their league games.
Mick Wadsworth has been placed in temporary charge for this weekend's game with Yeovil.