I find that the best tactics usually belong to the strongest guys...
There are two guys around here that have the tactics just nailed... or so it would seem were it not for the fact that they're both heads and shoulders above everyone else in the field.
It's pretty easy to put a guy in the break, bridge up to the break, drop the other dudes, then have your sprinter win the field sprint if you're just that much better than everyone.
Case in point: Hincapie went to this local amateur stage race in GA last weekend and went 1-7 in the opening crit stage. The year prior to that they went 1-5, so I guess they were keen on improvement. That's not really tactics at that point. That's just being the boss.