I agree. I do think that Cook starts right away - I don't have a link, but I would bet playing time was part of Fran's recruiting pitch similar to Woodbury/Gesell.
While I find it unrealistic to leave Uhl on the bench, my personal favorite lineup is Williams, Jok, Jones, Cook, Wagner. This is a versatile lineup that features our three best rebounders overall, and (potentially: Williams) our two best rebounding guards. Scoring would be balanced with Williams (slasher), Jok/Jones (shooter), and Cook/Wagner (post scoring- and I'd expect to see Wagner begin to expand his range a bit).
Then, either Cook or Wagner slide over to the 5 spot, Uhl comes in to play 4 as the first man off the bench, Baer subs in at the three, and Moss, Bohannon, Ellingson fill the guard spots.