Will Shaun Alexander ever return to his 2005 form?

I remember him back in 02 when he ran in for 5 TD's against the Vikings and in 05 when he ran in for 4 against the Texans. You just don't get that same feeling from him anymore. Looks like he has lost his pion. He doesn't come off as mean and tough like LT. He looks more like Tiki Barber and someone you could take home to mom-almost like a big teddy bear. He used to be the sure pick in fantasy football but he has yet to do some damage this year. Is he nearly done?