Ray Meyer, the Dad, had quite a record.
en.wikipedia.org
Joey Meyer, the son in this excerpt did well for a while:
Joey Meyer led DePaul to seven NCAA Tournament appearances in his first eight seasons, including back-to-back Sweet Sixteen appearances in his second and third seasons
Then:
In 1996, they finished 11-18, their first losing season since 1971, and the next year, a young DePaul team finished 3-23. Meyer was dismissed on April 28, 1997 and succeeded by
Pat Kennedy just over six weeks later.
[6][7]
Later, he coached for the ABA and NBA Development League with mixed success.