Looking at the Toledo star's 6'4" 205 lb. frame working out at the combine, one would think he's set to be a threat on the outside.
Russell is decently quick, has the size to go up and get balls thrown high, and has an upside to use his size in the blocking game. While that last aspect of his game certainly needs work, there's no reason to expect he can't grow in that capacity.
While Russell does catch intermediate route balls well and shown a decent ability to pick up large chunks for first down, he shouldn't yet be mistaken as someone who is willing to go out over the middle and take bigger hits.