Castro-Fields will be back as the unquestioned leader of Penn State's cornerbacks for his senior year.
Hamler was a go-to wide receiver for Penn State over the past two seasons.
The Lady Lions had no answers in an ugly loss that exposed many of the young team's flaws.
Penn State Athletics confirmed that Limegrover's contract will not be renewed, and a national search for his replacement will begin immediately.
Matt Miller of Bleacher Report is another draft expert who expects Yetur Gross-Matos to be a first round pick in the 2020 NFL Draft.
Penn State held a spot in the AP Top 25 poll for the third consecutive week on Monday.