I really enjoyed Bob Welch in Fleetwood Mac. Yes he did do writing for them. I understand that he got along very well with the band after he left (or was replaced?).
Something I read today about Bob.
Welch was a guitarist and vocalist for Fleetwood Mac from 1971 to 1974. He formed the British rock group Paris in 1976, and had hits including "Sentimental Lady" in 1977 and "Ebony Eyes" in 1978. Fleetwood Mac's Christine McVie and Lindsey Buckingham did backing vocals on "Sentimental Lady."
I also liked his version of Oh Well by Peter Green,Hypnotized,Bermuda Triangle,Hot Love Cold World,all good songs.
It is a shame, he was told by doctors that he would not recover fully from his surgery.
I looked on iTunes and they do not list any albums from Fleetwood Mac when Bob was in the band. Four albums.