Agreed. And JFH managed that on a vastly superior budget (as far as we can tell).
Two points.....
1) You could argue that JFH's budget didn't kick in until the transfer window. After 24 games in charge the date was January 13th.....
2) Those first 24 League 1 games of Hasselbainks charge brought about 8 wins, 5 draws and 11 defeats, scoring 22 and conceding 39, so he was actually performing better at this stage than Curle is. (taking League 1 games only into account)