For general manager Brian Gutekunst, the heavy lifting is complete. With maybe an exception or two, the players who will be on the Green Bay Packers’ roster to start the season probably are on their roster today. With six draft picks and four veterans, there have been 10 key additions to the roster. That means there are winners and losers. Winner: Jonathan Gannon The Packers have a new defensive coordinator, and Gutekunst gave him a welcome package that included defensive tackle Javon Hargrave in free agency, linebacker Zaire Franklin in a trade, cornerback Benjamin St-Juste in free agency and cornerback Brandon Cisse, defensive tackle Chris McClellan and edge defender Dani Dennis-Sutton with the first three picks in the draft.…