Complex sentence: On January 21, wide receivers coach and recruiting coordinator Curt Cignetti resigned his position to accept the head coaching job at Indiana University of Pennsylvania, and on February 7, Mike Groh was hired a his replacement as wide receivers coach and recruiting coordinator.
Split into simpler sentences: On January 21, wide receivers coach and recruiting coordinator Curt Cignetti resigned his position to accept the head coaching job at Indiana University of Pennsylvania. On February 7, Mike Groh was hired a Cignetti's replacement as wide receivers coach and recruiting coordinator.