Re: Boring boring boring.
Problem was Cleggs LibDems campaigned on the most left wing manifesto of the election (out of Con, Lab & LD - excluding smaller / non Eng/Wales parties) - go and look, it was left of Labour.
Thus, coalition with Tories was a killer long term LD blow, as plenty of people voted for them as the anti Tory vote / due to leftish policies, and so getting into bed with Tories alienated lots of voters. That trust is gone "forever" (a good few electoral cycles, until enough voters forgot / unaware if younger). Most LD voters at that election would have expected LDs to align with Labour given why so many people voted LD
If someone had offered me the FB job on huge money, I would have refused - but then again I have my set of morals that mean I would not work for certain companies / people at any price (so given I have strong ethics I'm not & never will be a politician)