Pundit - I'll ignore the insults in one of your last posts. I've got a first class degree from Cambridge University so I am pretty comfortable about my intellect.
Your analysis is flawed in comparing Kessler to some of the nobodies Calzaghe fought in the last 3 years pre-Lacey and making the point that if he fought these fighters, then why can't he fight Kessler.
Nobody has been defending Calzaghe's choice of opponent on this forum pre-Lacey - it was bloody awful, but by beating him, Calzaghe has raised up a level in the boxing world: both in the P4P rankings and marketability. You may belittle his win against Lacey, but you are in a minority there, like it or not, Showtime see him as one of their prized assets.
Therefore, he needs to fight someone with a name recognisable to Showtime, ITV and its paying public. Kessler is so off the radar there. At best, you can say Kessler has the potential to be a top fighter: I've seem him on DVD 10 plus times and ringside once, I personally don't think he would stand a chance against Calzaghe (I see a ramrod jab but little else: Calzaghe slips it all night and counterpunches his way to a wide points decision), but my personal opinion is irrelevant to whether the fight should be made. Kessler is an inexperienced champion (and please don't retort with his age or or fight record, I know both), in that he has not stepped up his level of opposition. He will also want paying a damn sight more than Tocker Pudwill, Evans Ashira etc but doesn't have the standing in the boxing economic world to justify that.
If Showtime want the fight to happen, bring him over to the US, showcase him as chief undercard to a decent main event.
All this is the reason why Calzaghe is ignoring Kessler at the moment. Other than boxing nuts on a few internet forums, there is no real call to fight him and the numbers don't add up. That is why the fight probably won't be made, rather than using trite comments such as "Calzaghe is ducking him".