Trevor Siemian reminds me of Gary Kubiak, the player. Kubiak was a fine backup. Bright guy who could step in to help a team when needed. But no way the team goes to Super Bowls with him as the primary QB. 

As for who else the Broncos could play now, that's a legitimate question. The answer is, Siemian probably is the best option. But that's John Elway's mistake. He drafted a QB in the first round who can't play. He failed to trade/sign anyone else, saying, "We're happy with our QB situation (Siemian and Lynch)." Well, he better be happy with 8-8 too, because that's what happens when you don't have excellence at that position.