Nothing concrete, just a few clues.(1) there were some reports from Baltimore that Tyrod and Dennison had a good relationship and Kubiak praised Taylor for picking up his system (2) when Kubiak goes to Denver he tries signing Tyrod in FA, (3) after Manning retires reports surfaced in Denver again that Denver was interested in trading for Tyrod at the draft last year.
Based on the above, it seems clear to me that Kubiak liked Tyrod a good deal. I look at Kubiak and Dennison as one in the same as they have been together for so long. Denver went after Tyrod twice when Dennison was OC there, he must have been on same page with Kubiak.
Now if you believe all that, McDermott goes ahead and hires an OC that has worked with Tyrod and likes him as a QB. He knows what Dennison thinks about tyrod during their interviews. McDermott must have agreed with Dennison's assessment of tyrod or else he does not hire him. To me it is clear that Whaley wants to move on (seems to be enamored by Cardale) and the HC and OC would like to keep Tyrod. Again, this all seems pretty logical but it is still just guess work.