The one reason why I don't think we'd implode this season if we lost Vik - and it was only him we lost (ducks for cover), is that the team play should ensure that if we replaced with a half decent striker (a fit Godden would do, but we'd obviously need more) the overall play would still create enough to win a decent amount of games. What you wouldn't get is the powerhouse Wigan type goals.
Would be a huge loss, but not one we couldn't overcome.
Edit: I'd still hate to break up any of the team at the moment - would be gutting initially.