The reason for the reforms is that the current Russian divisions are too large to be used as a whole in most situations. For example in the Ossetian war, none of the divisions were used as a whole. Instead elements from the 19th and 42nd MR, and 76th and 7th VDV, as well as independent rgts, brigades, and btlns were used. Generally they were grouped into 5 units, each with a rgt at it's core, and additional assets to support it. This will probably be similar to the makeup of the new Russian brigades, several MR btlns, 1-2 tank btlns, and support assets. In effect this is what the units that actually end up used look like, so organizing along those lines in the first place makes it much more efficient.