The race is not always to the swift nor the battle to the strong, but that's the way to bet.
The "Site brought down by hackers" excuse on Lieberman's side is too lame to even rate as pathetic. So, the bet's on Lamont. The piling on Lieberman tomorrow is going to be ugly and petty, and there is going to be a lot of dislocated shoulders from excessive back-patting. There's also going to be an upsurge of very savage opportunistic assaults on the "DLC" and how the Democratic party isn't going to take their betrayal anymore, yadda, yadda.
Here's a bet. How quickly will Ned Lamont join the DLC? I say a lot sooner than most people suspect. He's a businessman who has voted with Republican colleagues in local government. That's not a smear, it's just a statement of fact. This is someone whose natural affinity should be for like minded Rockefeller Republicans. (In my book, that's not a criticism, btw.) So, I don't think there's much question about who he'll hang out with in DC once he gets there and the spotlight goes away. That's not a criticism of him, either.
The reason for wanting to replace Lieberman is not his policies but his partisan fecklessness. The bet on Lamont is not that he'll be liberal, but that he'll be loyal.