The key to beating the Niners is simple; control McCaffrey. Sadly the Cards have had little success doing this. I’ve suggested putting a spy on him, like you would do with a QB. He’s not super hard to tackle, but it takes a fine athlete to cover him. Taylor-Demerson is likely best equipped to do this. If you played him at safety that would force Baker to cover more, not his strength. Still with an improved pass rush and improving corners, I’m willing to make this adjustment. Baker is too small to cover McCaffrey and like Baker, Thompson’s cover skill leave a lot to be desired. If McCaffrey is injured, these become very winsble games. Aiyuk is always a concern, but the improved pass rush should control their passing attack aside from McCaffrey.