They would have done a better job by supporting and conditioning a minority government. Let Tories get all the flak while you bring home electoral victories. Instead, they got all the flak, didn't significantly change anything (they resisted or delayed a few "reforms" like this bill, which will now go through), U-turned on all their manifesto promises (which, one suspects, the leadership only endured because of their grassroots activists and not because they believed in any of them) and made themselves unelectable.

"A pretty good job" sounds a lot like "a heck of a job"...