The defendant received three years probation in a plea agreement that stipulated a dispositional departure from prison to probation. 126 Or App at 147. Guyton recognized the intent reflected in the guidelines to impose revocation sanctions that were equal to the presumptive prison term that could have been imposed initially. However, our opinion in Guyton did not consider the legal effect of executing a probationary sentence and, therefore, does not control the question of reviewability here. Accordingly, to the extent that Guyton is inconsistent with our disposition of this case, Guyton is overruled.
Trial courts have no inherent authority to modify executed sentences.
To hold otherwise would effectively allow for the post-execution modification of sentences. The trial court retains the discretionary authority to revoke a probationary sentence for cause. Similarly, the trial court retains limited authority to impose sanctions on offenders when probation is revoked. In the final analysis, at issue here is the scope of a trial court's authority to impose revocation sanctions. The rule provides only two possibilities.