Agree about the clothing...except that, the drawing does show a distinctive pattern to his facial hair growth. So if he IS going about unshaven, that stands out to me with some of the mugshots I've been browsing today (24 from Carroll County, and 225 from Tippancoe). In the composite, the subject has two distinctive oval patches under his lower lip that are hairless. So IF he is still wearing a beard or goatee, that should be noticed, as it appears to be a hair-growth pattern common to some goatees but not others.
The subject also has a somewhat bulbous nose with flattened midline ridge, a relatively shortened and indistinct philtrum (central area between tip of nose to top of upper lip), wide-set eyes (more than an eye's width apart), and well-defined (but not bushy) eyebrows. His hair appears somewhat untamed and wiry, rather than laying down flat against his head. His ears are not prominent, and he appears to have at least the beginnings of middle-aged jowl.
They said when releasing this composite today to concentrate on the facial features, not the clothing--and the variance with the hat might even be to encourage that (though he may have been wearing a similar cap when seen by the witness). So maybe try to tick these specific features off along with the height and weight when comparing this photo to possible suspects.