I do not know if it is Evans who is not good enough to create opportunities for himslef, the offense that cannot get him the ball, or a combination of both. That being said, the answer is either.
1) Evans is overrated and we can trade him now for a decent draft pick next year or another area of need, because we are obviously rebuilding.
2) Evans is not being utilized properly and needs to go to a team where he can be successful, while allowing us a high draft pick so we can rebuild this team.
Either way, I agree, he should be traded if we do not show something more in the next week or two.