Eddie Johnson: If Jayson Tatum and Jaylen Brown win another title, both will take major leaps. Tatum for his dedication to getting back on the court after an Achilles injury and playing to an All-NBA level. Jaylen Brown for his ability to lead the Celtics to the second-best record in the East. Both would move up the all-time ranks and be considered among the best duos in league history.HoopsHypeThis article originally appeared on Hoops Hype: Eddie Johnson: If Jayson Tatum and Jaylen Brown win …