As somebody else pointed out in the main thread, this list is sorely lacking scope and possibly should have been titled: Most Influential Personalities in the Eyes of North Americans.

For example, it was probably a strong oversight not to include Roman Ambramovich, the controversial owner of Chelsea whose spending spree led to widespread hatred in England.  Keeping with the most powerful league in Europe (the English Premier League), how could we forget Sir Alex Ferguson, the powerful coach of Manchester Utd.  Sir Alex has been partially responsible for the flourishing careers of many prominant soccer stars including David Beckham and Wayne Rooney.  The Glazers should have made the list as they (along with Tom Hicks and some other dude) are the first North American franchise owners to recognize the untapped commercial potential of European professional sports.

Outside of football, it would have probably been a good idea to include a personality or two from the world of cricket, one of the most beloved sports in one of the world's most populated countries (India) as well as every other country that was originally a part of the British Commonwealth.   Finally, having a personality from Rugby wouldn't have hurt...

 Although the NFL is the most popular league in America, the NBA enjoys popularity in China (the country that holds ~ 20% of the entire world's population), so a case could be made for moving all the NBA personalities on the list up a couple of spots...although this is not a huge oversight.

While putting the commissioner of the WNBA on the list was a nice gesture, it is debatable whether the WNBA should be included at all...this would depend on your future prognosis for women's professional sports in general. 

Although I do not read Business Week (the only business magazine I read is the Economist), I think it is time for American magazines (both print and virtual) to address their subject matter from a global perspective rather than the (oh-so-20th-century) American perspective.  Of course the same goes for European and Asian media as well...those who don't acknowledge other cultures will also miss opportunities to make a difference.