Coincidentally Newcastle then also had a change of owners , as Mike Ashley completed his takeover of the club .
On 15 May 2007 , Newcastle United announced that Allardyce had signed a three - year contract to succeed Glenn Roeder as manager .
Coincidentally Newcastle United then also had a change of owners , as Mike Ashley completed Allardyce 's takeover of the club .
On 15 May 2007 , Newcastle United announced that Allardyce had signed a three - year contract to succeed Glenn Roeder as manager .