Kennedy v Brown v Cameron would make for interesting debates. With Iraq by then 7 years in the past, and Kennedy obviously going to want the Progressive Alliance that the Clegg bullshitted about during the campaign a lot more than the OTL leadership, might we come to see 'I agree with Gordon' emerge as a meme? I can certainly see Charlie turning around on Dave if such an exchange went like this:
'Actually, I agree with Charles.'
'I'd rather you didn't, David.'
In short, this might be an ASB turn of events. But nevertheless Charlie would certainly not allow the Lib Dems to sleepwalk into Coalition with the Tories, one need only look at his reaction to the Coalition IOTL to know that. Whether electoral arithmetic would work in his favour and install a Lib-Lab Pact - and indeed whether that would doom both Scottish leaders of British parties - would remain to be seen.