Is Najee Harris now here to stay? Should fantasy managers be concerned about DK Metcalf's recent production? Is Isaac Guerendo worth the top waiver priority? JJ answers those questions -- and more -- on this week's 15 Transactions episode.   Sign up and deposit on Underdog now and use promo code LATEROUND for free rest-of-season rankings and a first-time deposit offer up to $1,000 in bonus cash: https://play.underdogfantasy.com/p-late-round-ff