From CBS:
CBS announced today that CRIMINAL MINDS has been renewed for the 2013-2014 broadcast season, becoming CBS’s 20th series to be renewed for next year. Currently in its eighth season, CRIMINAL MINDS ranks as Wednesday’s number one drama in viewers (12.24m), adults 18-49 (3.3/09) and adults 25-54 (4.3/10).
CRIMINAL MINDS, about an elite team of FBI profilers who analyze the country’smost twisted criminal minds, stars Joe Mantegna, Thomas Gibson, Shemar Moore, Matthew Gray Gubler, A.J. Cook, Kirsten Vangsness and Jeanne Tripplehorn. Mark Gordon, Erica Messer and Janine Sherman Barrois are executive producers for ABC Studios in association with CBS Television Studios.
Evidently quite a bit of money got thrown at the leads in order to get them to stay. No word on whether any of the writers of CRIMINAL MINDS got comparable deals. Or even asked for them.