It will take time to develop Rattler, Haener or possible first round quarterback.
I certainly don't expect these young, late round picks to win us games. But as much as everyone trashes on Carr, let me at least see some comparable performances before we talk about these backups with any seriousness. The drop-off is night and day. They need to train in the background until something changes.
For now I'd keep the young QB search up. Roll with Carr till you find someone worth playing.