Gecko85
Explorer
I actually meant what I said for Gecko85, but this is what I was thinking about. They seem to have made a decision for 5e to make no classes required, even partially.
I agree with what SirAntoine said...A bard has healing spells, any class can add the healer feat (when they get feats later, or if they choose variant human right off the bat), and other classes can become proficient in thieves tools, perception, etc. So, I think it was definitely a design decision to make you less reliant on a particular party makeup.