There's just so many arbitrary classifications used by everyone in this thread, with regards to pitches, bowling types, and plain ignorance of match contexts, which is going to be the main determinant of what Sobers bowled. It's made to sound in here as though, "Oh, pitch looks a bit dry, better play Sobers as a pace bowler/spinner then."
If you've used three pace bowlers, and they haven't gotten a breakthrough, some days you'd use Sobers as a spinner, because they haven't looked threatening and you want to change things up. Another day, you might use him as a pace bowler, because you think that your quicks haven't actually bowled that well.