Since you mention md and vanguard in the same sentence, you need to go to the place where there are lots of md's and Vanguard admirers for investment advice: Bogleheads :: View Forum - Investing - Help with Personal Investments
I think the Merriman model is outstanding, but so are many other models. And some typical models are only slightly less outstanding than the Merriman model. That is, it won't make much difference.
BUT ... and it's a big BUT: The Merriman model is not necessarily suitable for a taxable account. You really want to get your asset location correct now for the most tax efficiency. Go to the bogleheads link and start reading.