It appears that there are a number of rookies this year who need inspection at first or near first team exposure. Wise teams should try to determine whether a rookie justifies playing time. Bring that guy along and find out what level he demonstrates he cannot, cannot handle.
Maybin is ideal because he can be inserted situationally, 3rd down and other passing situations. Wood imho has proven ready. Levitre is not as accomplished but has to learn and so should play so as to learn.
In no particular order Harris, Lankster, Nelson et al have looked good.
The "extra" pre season game is a God send. Now let us see how they do against opposing first units.