The Wings have tons of young talent and are a well-positioned to continue their unmatched excellence for years to come. However, after Datsyuk and Zetterberg, they lack star power. Howard, Kronwall, Franzen, Filppula are very solid players, but they are not stars. A handful of the young talent may rise to become stars, but they have a long way to go... and nothing is guaranteed.
If you want the Wings to become contenders year-in and year-out, Kenny's challenge is to land a 'star' defensemen... and a 'star' forward (or two) who can complement Zetterberg's talents... and help convince Datsyuk to stay in North American beyond next year.
Bouwmeester is undoubtedly a solid player, but he is not star caliber. He would have made the Wings a better team, but not a serious cup contender. Plus, his cap hit (virtually the same as Datsyuk's) would have handcuffed Holland and made it virtually impossible for him to turn this Wings team into a serious threat for the Cup... not only this year, but for years to come.