To replace a public defender with an attorney from the Alternative Council office, your public defender would have to make a motion to withdraw from your case because there is a conflict of interest in representing you. If you are filing a claim that there was "ineffective assistance of counsel" then there would be a conflict in having your current public defender represent you on appeal. The public defender would have to state this for the reason in the motion. Basically, the public defender would have a conflict of interest in stating that he or she did a bad job defending you. Therefore, you need a new "conflict free" attorney who could bring a claim of ineffective assistance of the public defender in your criminal defense.
Here is the law:
21-2-103. Representation of indigent persons.
(1) On and after January 1, 1997, the office of alternate defense counsel shall provide legal representation in the following circumstances:
(a) Cases involving conflicts of interest for the state public defender as determined pursuant to subsection (1.5) of this section.
(b) (Deleted by amendment, L. 2000, p. 1479, § 2, effective August 2, 2000.) (1.5)
(a) To request withdrawal from a case due to a conflict of interest, the state public defender shall submit to the court having jurisdiction over the case a motion specifically describing the nature of the conflict of interest. If the state public defender determines that ethical obligations prevent a specific description of the nature of the conflict of interest, the state public defender shall cite any applicable legal authority for the determination, and the portion of the motion that specifically describes the nature of the conflict shall be sealed. In the event an issue arises later concerning whether an actual conflict existed, the sealed portion of the motion may be opened and examined by the original judge or by another judge if necessary to prevent the violation of an ethical obligation.
(b) Upon review of the motion, the court shall determine whether a conflict of interest exists that would require withdrawal of the state public defender and appointment of the alternate defense counsel.
(c) For purposes of this article, a "conflict of interest" may include, but need not be limited to, circumstances in which the state public defender represents a codefendant or a person who is a witness in the case or other circumstances identified in the Colorado rules of professional conduct or other rules of civil procedure as creating a conflict of interest. Case overload, lack of resources, and other similar circumstances shall not constitute a "conflict of interest".
(d) If the court allows withdrawal of the state public defender and appoints the alternate defense counsel and it is later determined that no genuine conflict of interest existed, the office of the state public defender shall reimburse the office of the alternate defense counsel for the cost of the representation.