Brendan Byrne’s polls & votes

How disliked was Gov. Brendan Byrne before he became a beloved elder statesman?  The first poll of his administration had his approval ratings at 51%-21% (Eagleton-Rutgers, March/April 1974).  By the mid-term election, Byrne was upside down at 23%-71% (Eagleton-Rutgers, October/November