I guess it comes down to several factors. Do we risk 4 points (for a draw) by losing the match; or do we go for the extra 10 points we'd get for the win?
A loss and we would be in very serious demotion trouble. A win and we could go has high as 4th in the table. A draw and the status remains quo.
Also, we need to factor in where McGrath ranks his place in history. If we don't win this match it will tie the LONGEST NON-WINNING STREAK in Yorkshire history. I'm sure McGrath won't want that legacy hanging around his neck, either.