While the great Tony Gonzalez is working through his own version of “Should I Stay or Should I Go,” the Falcons must carry on. General manager Thomas Dimitroff and head coach Mike Smith are set to leave for this week’s NFL scouting combine while working on several contingency plans for the tight end position. Both of them, along with the team’s assistant coaches and scouts, will be on hand for scouting and information sessions with more than 300 of the nation’s top NFL prospects that start Wednesday and run through Tuesday in Indianapolis. While waiting to hear if Gonzalez, the future Hall of Fame tight end, is going to retire or sign up for another season, they plan to thoroughly scout for tight ends. Gonzalez, who will turn 37 on Feb. 27, played at a high level last season when he caught 93 passes for 930 yards and was voted to his 13th Pro Bowl. He’s widely considered the greatest tight end of the modern NFL era. His 1,242 catches over 16 seasons — 12 with Kansas City and the last four with the Falcons — rank second on the all-time receiving list behind Jerry Rice’s 1,549 receptions.