At least one of Wright or Joseph has to go this pre-season. Possibly both but as the ole' true meme/staple goes "We like our guys".
I don't think Wright can overcome his limitations. He doesn't have the ability to come out of his breaks as quickly as receivers. Some tall corners can plant, chop, turn and burst; others do such a good job outphysicaling the receivers to throw them off their route. Wright doesn't seem to possess those tools.
Joseph has the tools, but may not have the mental makeup. Of course, as someone pointed out, he didn't really have a ton of experience in college. Some players just learn slower than others. Hopefully, it clicks for him this year.