With a sensible position coach like Clifford Ray, who's had O'Bryant all summer and probably sees him as a long term project, you'd probably have to break one of his arms to get him to say anything especially positive about O'Bryant (unless somebody said something dismissive of him). However, if he had something negative to say, he'd probably squeeze it in between the lines. And that's apparently what he was doing when he stressed that O'Bryant needs to learn there's more to playing the center position than just X's and O's.
By listening to Ray, I'm hearing the message that O'Bryant may have a strong shot at a good future. (But I've been wrong before.)