Lex discusses reskinning or redesigning a class that doesn’t fit your campaign instead of removing it. Just as the classes available to play in a campaign set the tone & flavor for the campaign, so too can you achieve a specific goal through the PC races & subraces you allow (or don’t allow). Lex also talks about using material from previous editions in 5th edition and moving beyond simple binary pass/fail in your D&D game. Finally Lex talks about player agency and why player perception is far more important than the amount of agency they do or don’t have.