Unity of the Spirit is good; we should strive for that. There's one Spirit and one body; so, if we're walking in the Spirt there should be peace and harmony. However, just as much division has been caused by those who profess to follow the Spirit as those who profess to follow the written word.
What's lacking are people with a true spiritual gift of teaching. We should pray for teachers who know what they're talking about. As it is, everyone wants to be their own teacher. Everyone says: "The Spirit told me this, or the Spirit told me that."