Unless you are referring to Rowand and Everett as the "nucleus" of the 2005 team, the Sox went "all in" with the largely the same nucleus, plus Thome (MLB's premier LH slugger) and Vazquez (a largely reliable #3 starter). The only question mark was CF, where they had a top prospect they felt was ready for the show, who would bat ninth. KW upgraded the bench with two players who had started elsewhere: Cintron and Mackowiak. And KW's two bullpen acquisitions - Thornton and MacDougal - pitched better than most of the returning relievers. Those were all the right moves, and they were poised to repeat until the starters and relievers tanked in the second half (compounded by Ozzie often weakening the defense by putting Mackowiak in CF), and the hitters went cold in September.
The universe is the practical joke of the General at the expense of the Particular, quoth Frater Perdurabo, and laughed. The disciples nearest him wept, seeing the Universal Sorrow. Others laughed, seeing the Universal Joke. Others wept. Others laughed. Others wept because they couldn't see the Joke, and others laughed lest they should be thought not to see the Joke. But though FRATER laughed openly, he wept secretly; and really he neither laughed nor wept. Nor did he mean what he said.