Many bands recording their first albums or EPs or demos will book some time at a studio space and get paired up with an engineer who often acts as producer and mixer.
Unfortunately, these guys are trying to earn a paycheck like everyone else and often don't approach their work with a lot of creative enthusiasm. They make things sound "good" not interesting. They know how to produce a CD but they will not enhance your sound. New bands often suffer because they can't capture their sound on CD for lack of a good producer.