I saw that this morning.I met Carlos years ago in 69,before Santana played Woodstock.It was at the NY state pavilion(seen in the movie"Men in Black").It was 2 bucks,general admission.and there was no seating.
Santana was just killing it,and Michael Shrieve,was playing his Pink Champagne sparkle Ludwigs.Santana actually opened for a band called Pasific Gas and Electric.
The band hung around after the show,and I chatted with Mike,Carlos and Greg Rollie(Journey).Carlos was just a great guy,as was the rest of the guys,and he was really juiced about playing Woodstock.
I had heard he was tough on drummers, and all of his percussionists.It was Latin Rock,and those guys had to lock together like they were one drummer,or it just wouldn't work.I don't think there was any bad blood,as Schrieve still speaks well of him.
Anyway,IMHO,the guy is a class act,and he does spread the wealth around.
Steve B