I have never heard of him and did a quick Google check but all I came up with was the link to our Athletics site, so maybe someone with a better background in Women's Volleyball can offer some insight.
My initial thoughts are that he seems to be a good hire with lots of experience and strong Bruin ties. However, one of the reasons Coach Banachowski was such a legend was because he always made a connection with the fans in addition to the on-court success. It will be interesting to see if Sealy can match that enthusiasm and keep attendance numbers strong.