If you want to bring in another #3 WR to compete with David Nelson, that's fine. Manningham has never shown to be anything more than that.
And you want another open QB competition going into next season? Less than a year after signing Fitz to his new deal? No man, that's not a good idea. Flynn will go where they hand him the starting job. He's not interested in competing with anyone for it. You know that, don't you?