In Castle's absence, both Spenser and Newton have had two strong games, including in each case one showcase game. To the extent that Castle's absence has put the ball into their hands, we have not greatly suffered. We might even have gained. It's a question whether our three-guard offense optimally exploited the strengths of all three of its components. It could be we were underusing Newton and Spenser. Remember that when Castle returns, a good part of his production will not be additional; it will merely be numbers transferred to his stat line from Newton and Spencer's stat line.
I do not suggest that the team won't be stronger in the long run with all three. I merely suggest that, at the moment, Castle's absence is not an unmitigated loss. It is importantly made up by increased production from Newton and Spenser. I like our chances against Texas. I even like our chances against Kansas, but I think they would be better if we do not re-introduce Castle into the lineup for that game.