I always felt that Dylan sang the way he did intentionally, to get that folksy sound. As someone said here, a while back , he's a poet not a singer! It used to be the presentation as well as the quality of the vocal talent. Nlow you might as well get Autotune if you're going for the big time. Seriously, singing talent is secondary nowadays, to working out in the gym and having a sexy body! LOL. Just let the guy do his thing, and if you get good reviews go for it. If not, get a lead singer! A man's ( or womanis) got to know his/her limitations.