Personally, assuming that our form does not completely fall off a cliff to the point where we are looking at the other end of the table. I'd want to keep Doolan on for another close season. I like the fact we score so many goals. There is a lot going right to achieve this. We are still third and his overall ppg record is still decent. It was always likely we would hit a run of bad form (in all three of McCall's Championship seasons we had dreadful runs of 5 or more games without a win).
However, mistakes were obviously made in defensive recruitment. There were mitigating factors in this (in my opinion, I know others disagree), and of course this was Doolan's first ever recruitment window. He did show last season that he can set up a team to defend competently with the right personnel. He's been (partially) unlucky this window in that I don't think we had much to spend, and the one centre back added (which looked the right kind of player) is now injured. The goalkeeper situation is perplexing.
However, I would like to see if he is capable of fixing the defence in another close season, in which case we could be very successful with the goals we score. If he proves not up to the task then I accept we would have to look elsewhere.