That accurately describes Boone's career as an Angel. His dWAR averaged over 2 as an Angel.
But as a Phillie, Boone averaged about 1 dWAR per year. His last two years as a Phillie were 0.9 and -0.5. Combined with oWAR of 0.3 and -0.2 those years, it's not surprising why the Phillies let him go.
The only other sons of ML players who had multiple sons who were ML players that I can think of are Buddy Bell and Jerry Hairston Sr.
