Accordingly, even if the trial court had accorded greater weight to the Defendant's mitigating proof, it nevertheless would have been required to impose maximum sentences for the Defendant's Class D and E felony convictions. See State v. Massey, No. M2013-00362-CCA-R3-CD, 2013 WL 3967686, at *2 (Tenn. Crim. App. Aug. 1, 2013) (holding that when a defendant is properly classified as a career offender, an argument that the trial court erred in imposing a maximum sentence because it gave insufficient weight to the mitigating proof or otherwise imposed a sentence "greater than that deserved for the offense committed" is unavailing). The only conviction for which the trial court retained discretion to impose a less-than-maximum sentence

Id. (stating that "the proper forum for asserting that a plea was not knowingly or voluntarily entered in accordance with Boykin is in a post-conviction proceeding"); State v. Jimmy Ray Massey, Jr., No. M2013-00362-CCA-R3-CD, 2013 WL 3967868, at *1 (Tenn. Crim. App. Aug. 1, 2013) (concluding that this court lacked jurisdiction on direct appeal to address the defendant's claim that his plea was involuntary and unknowing because the exceptions articulated in Tennessee Rule of Appellate Procedure 3(b) and Tennessee Rule of Criminal Procedure 27(b) were not applicable); State v. James Albert Taylor, No. E2007-02878-CCA-R3-CD, 2009 WL 396076, at *5-6 (Tenn. Crim. App. Feb. 17, 2009) (declining to review the defendant's argument that his plea was not voluntary and noting that filing a petition for post-conviction relief is the proper avenue for this claim). We conclude that the Defendant is not entitled to relief.

Therefore, the trial court properly ordered the Defendant to serve the maximum sentence in Range III of six years for failure to appear, a Class E felony. See, e.g., State v. Jimmy Ray Massey, Jr., No. M2013-00362-CCA-R3-CD, 2013 WL 3967686, at *2 (Tenn. Crim. App. Aug. 1, 2013) (holding that the "six-year sentence imposed by the trial court was the mandatory sentence required under the statute" for a conviction of failure to appear, a Class E felony, when the defendant was a career offender), no perm. app. filed. The trial court did not abuse its discretion by sentencing the Defendant to the maximum sentence for a Range III career offender.