The Los Angeles Chargers have added veteran free agent tight end David Njoku to their roster following a visit at the end of last week. Njoku will join a tight end room with Oronde Gadsden II and Charlie Kolar. The Chargers had a need for an addition to the tight end room following the draft . By adding Njoku to the mix, the Chargers have solidified the room and created a well-rounded and deep group of players. The Chargers will be ushering in a new offensive system with new coordinator Mike McDaniel. Let's dig in and see why Njoku was a target to add for the Chargers and how he will fit in the new scheme. Mike McDaniel and using multiple tight end sets Jay Biggerstaff-Imagn Images Mike McDaniel, over the past few seasons as the play caller and head coach for the Miami Dolphins, has used multiple tight end sets frequently. These personnel groupings are commonly referred to as 12 or 22 personnel.…