That's underselling it.
They had Ken Griffey Jr, Randy Johnson, Alex Rodriguez, Edgar Martinez, and Jay Buhner together for five years and didn't do anything.
Some will raise an eyebrow at me including Buhner, but he hit 40+ home runs three times during that span and was top 3 in MVP voting.
How could the Yankees trade him for Ken Phelps? Ken Phelps, Ken Phelps, Ken Phelps....