Success leads to long term failure when you stay with what you got and ignore your weaknesses hoping they'll just disappear on thier own. That's what happened in 2005. And 1989. And yes, even 1983.
How many offseasons have we seen in recent years when the entire infield had to be replaced? Hardy provides one answer and maybe Davis another (if they would start using him at first!) but the lineup too has needs and a good all around guy at 3rd or 2nd who can play 155 is essential. A good table setter and another high OBP guy batting third are needed before this team can really have a chance. And oh yeah, how risky is the catcher position relative to injury?