Is McCoy v Louisiana a logical extension of Florida V Nixon when concession of Petitioner's guilt was never discussed prior to trial?

QUESTIONS PRESENTED 1). Is McCoy v Louisiana a logical extension of Florida V Nixon at all when concession of Petitioner's guilt was never disSussed prior to trial? ! 2). Does adjudicating a McCoy claim as one of ineffective assistance of counsel amount to any meaningful adjudication of a McCoy claim? 3). After a not guilty plea, does requiring basically an "outburst" objection to preserve a McCoy claim violate a defendant's Fifth Amendment right to remain silent while refusing to admit guilt during trial?