Of course the writing will determine if it will succeed, but I actually see a lot of comic potential in a show about Joey’s character. If it focuses on his acting career, then I can see lots of funny scenes regarding auditions, preparing for roles, working with different types of directors, becoming a minor celebrity, maybe teaching acting classes, etc.
But if they try to make it a show about relationships and dating and stuff like that (essentially trying to force it to be like Friends),
then it will probably be lame.