The arguments for him staying seem to break down into:

1) "He's done a fantastic job in getting us a mid-table finish following a couple of relegation-threatened years and I'm confident that with a few new players we can push for promotion next season";
2) "We've had too many managers in the past few years so even though I'm not totally convinced I think we should stick with him";
3) "I'm not overly keen on Bulut staying but we'll probably end up with someone worse if he goes".

Would be interesting to know what the split is.