RetM, the percentage of goaltender minutes played last season for returning goalies divided by those of all goalies, is about the best indicator you�re going to see for experience in net. Note that virtually every team in the ECAC returns its principal netminders:
Team Ret All RetM Brown 1834 1834 1.000 Colgate 2246 2246 1.000 Princeton 2138 2138 1.000 Clarkson 2230 2242 .995 St. Lawrence 1956 1988 .984 RPI 2163 2235 .968 Cornell 1758 1818 .967 Vermont 2011 2109 .954 Dartmouth 1516 1628 .931 Harvard 1561 1805 .865 Union 1005 1757 .572 Yale 140 1692 .083