Is there any case law where a defendant alleges that both counsel at trial and appellate counsel rendered ineffective assistance?

Finally, Carbajal alleges that both his trial and appellate counsel rendered ineffective assistance. To demonstrate ineffective assistance of counsel under Strickland v. Washington, a defendant must show both that his counsel's performance was deficient and that the deficient performance prejudiced his defense. 466 U.S. 668, 687 (1984). A deficient performance is one in which "counsel made errors so serious that counsel was not functioning as the 'counsel' guaranteed by the Sixth Amendment." Id.