Hartson is right when he says that Saints are a step down in terms of the "size" of the club but he doesn't seem to be able to deduce or rationalise why one of the "big" clubs didn't come in for him.
Maybe, John, that's because they don't think he's as good as you do and that a smaller club like Southampton is actually a better match for developing his talents at this moment in time.
Just a hunch...
Edit: ...and if Wanyama is as good as Hartson says he is then surely he'll help turn Southampton from a "bottom 6" side into a team competing in the top half. You can't have it both ways John me ok' mucka....