The Yankees are old. They will not contend unless Porgie Georgie goes out and takes the short-cut of buying other teams' players again.
Williams, Mussina, Johnson, Martinez, Giambi, and Sheffield are all moving into their middle and late 30's- young for a person, old for a pro ball player.
Sheffield, Mussina, and Giambi have some good years left, but they're going to need a better ensemble to compete with younger contenders next year like the White Sox, Guardians, A's, Angels, and possibly the Twins.