What is the reason why a defendant withdraws his plea?

On June 6, 2013, a hearing pursuant to People v. Marsden (1970) 2 Cal.3d 118 (Marsden) was held. Defendant indicated he wished to withdraw his plea and wanted a new lawyer. When asked to explain his reasons, defendant stated, "I took the deal because I thought that my attorney didn't feel too confident going further in my case." The trial court asked for clarification as to whether it was "something about the evidence, or is it something about him personally." Defendant responded, "Nothing about him, just about my case."