This could be Alvin's last year as a Saint and it would be a massive mistake by Allen

Better for him to depart a year early than a few years late. If you're more a fan of the team than of individual players, that is the mindset to have. It would be even better to have a tradable contract in that last year so the team could recoup a pick or a younger player for a declining star. It's how the Patriots were great for a decade and a half.