Ironically our average placing would be way better if it wasn't for the successive managers we poached off you.
You shouldn't really expect the average placing to be proportionate to spend. The relationship between spend and placing is more likely to be better expressed in ordinal numbers than cardinal ones- i.e. How that spending ranks against the competition.
I'd bet over that period we've spent fourth most, maybe fifth depending on hibs, so are probably on average where we should be.
It's not that surprising that Motherwell average just behind the five big city clubs, although i don't know how that relates to budget- i'd guess the dundee clubs and Killie are the closest spenders? You've almost certainly outperformed them.
Anyway, both Jimmy and Derek kept us respectable but were clearly in decline. I wasn't in favour of the timing of binning either but could see the arguments. Derek was clearly more consistent and better, but i liked Jimmy too.