"Coach (Bobby) Petrino is a detailed coach," the two-star receiver said. "With this being my second year playing football, I got a lot more learning to do.
"He (Petrino) can get me to where I want to be. Also, the receivers coach (WKU assistant) Lance Thomas, I liked him a lot."
Simmons, a 5-foot-11, 180 pound cornerback, picked the Hilltoppers over an offer from Middle Tennessee State.
"Well, I visited (WKU) this weekend and I really liked it," he said. "I raelly liked the coaches, Petrino, the entire staff.
"My family is really excited. They really wanted me to go there (WKU)."
Greene played wide receiver for the first half of Southwestern College's 2012 season, then started at cornerback for the second half.
He also played kick return for the Jaguars, helping lead them to a 10-1 overall record in 2012.
The new additions bring WKU to a total of 32 verbal commitments before National Signing Day on Feb. 6.
Stay tuned with WKUInsider.com for the latest in WKU recruiting and team news information.