Forget the financial side of things but he should fear the sack if for one reason alone. He's a would be manager trying to carve his name out in English football and so far his early CV won't have that many chairmen ringing his phone asking to interview him in my opinion!.
David weirs CV as it stands.
Manager: Sheffield United
Statistics: Played 12, Lost 8, Drawn 2, Won 1. (win rate percentage 8%)
Goals team have scored:7
Goals team have conceded:17
Eliminated from 2 cup competitions in early stages.
Can't see him getting any offers above league 2 in england after this spell as it stands only option would be try his luck in the hotseat in Scotland.