I felt real bad for Haener when they cut to him just after the half and he had that "1000 yard stare" and Rattler had his helmet on. I also thought that Haener had outplayed Rattler before the start of the game Sunday. I just think the moment was too big for Haener. Rattler has more moxie than Haener does and he rose up to the moment.
Going into Sunday I felt Jake was still QB2, but I think Rattler's performance earned him the backup job outright.
Haener is still on his rookie contract, it's not over yet for him, but he squandered his best opportunity Sunday. While I do feel bad for him. Rattler has more upside and seems to be learning to adjust to the NFL game faster than Haener.