Second, I think it's ludicrous to dismiss the value of the connections and impression that someone like Mayer would make by heading up such a program at such company. In short, she's got one of the best networks of talent, many of whom feel indebted to her. I'd expect at least a few of them will be glad to come to Yahoo, if Mayer calls.
As the article pointed out, however, It’s not surprising that a high percentage of APMs go elsewhere. APMs are chosen for their ambition and independence. Those traits are often at odds with working at a big company
A successful executive at any organization could be expected to bring along X number of of loyal reports if they move laterally. It seems likely though that the especially ambitious and independent individuals discussed would be less likely to do so.
This could be compounded by the reported personal difficulty some individuals had while working with her (Douglas Edwards' book http://www.amazon.com/Im-Feeling-Lucky-Confessions-Employee/...).
In all, the headline sensationalized the situation: she developed an employee incubator program at Google and some of the graduates will probably end up at Yahoo.