When all youâ?Tve done seems to matter less and your heart craves more meaning, when youâ?Tre entering the second half of life and unsure what your calling is for this seasonâ?¦ youâ?Tre in Halftime. Updated and expanded for a new generation of leaders, Bob Bufordâ?Ts bestseller shows you how to make the second half of life more rewarding than the first.