I don't know about PFF and how they have him graded, but I was watching Dion Sims' blocking vs. the Cowboys and he looked like crap. No expert here and I didn't go back and do a thorough film analysis, but he just couldn't get a hat on anybody. This has me concerned because he is supposedly our #2 TE. I know it aint the only thing, but if this guy can't get it together it's gonna limit our already limited offense. So, yes, this has me concerned along with our inability to run the ball (Pre-season against Dallas doesn't count). :-)