Shackelford isn't a very efficient scorer. I don't think he would add a ton to our current roster. If he replaces Johnson, that is a pretty equal swap on talent. If he replaces Issanza, and Shackelford wins minutes, he is likely winning them from somebody that would produce at a similar level (IMO). Russell was similar, but at least shot it a little better from 3.
Truth is, both probably had us on their lists previously, and OU really isn't much of a player down the stretch, but keeping our name on there makes the transferees look a little better. I'd be surprised if we end up with either, but stranger things have happened.
Are we really complaining about the leading scorer on a top 5 team? Do you think we're that loaded next year?