Pittsburgh Steelers: Out with the old, in with thea old?

The Pittsburgh Steelers have been following an unusual trend as of late that's left me to scratch my head and ponder why they're doing this.

http://isportsweb.com/2013/07/25/pittsburgh-steelers-out-with-the-old-in-with-the-old/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+isportsweb+%28isportsweb%29