If the club fail to deal with their mammoth rental overheads then a move to share with rugby league neighbours Bradford Bulls at Odsal Stadium could be on the cards.
Both sides went into the final day clash with nothing to play for but pride, but it was the Bantams who signed off nursing their heaviest defeat of the season.
Crewe went in front after 12 minutes when Shaun Miller intercepted a misplaced pass from David Syers and took the ball around keeper Jon McLaughlin before shooting into the empty net. But Bradford equalised 10 minutes later when Jake Speight was brought down by David Artell, and he picked himself up to score from the spot.
Miller quickly added his second after 33 minutes having taken a pass from Byron Moore before the Alex's leading scorer Clayton Donaldson registered his 28th league goal of the season, beating McLaughlin with a shot from the edge of the penalty area. Danny Shelley then scored goal number four a minute before half-time when McLaughlin failed to hold his 25-yard shot.
Shelley completed the scoring in the 67th minute with a deflected shot in a crowded goalmouth after two previous efforts had been blocked.