Section 119 is located directly behind the bench and will be your best option for sitting behind the players. Section 119 has a subsection that designates the seats as courtside (Section 119CT) and these will be as close as you can get to the players on the bench.

As for where the Clippers enter the floor, this is located between sections 118 and 117. Section 118 Row 1, and Section 117 Rows B-H will be your best options for viewing the players as the walk on and off the court.

View from Section 119 Staples Center
This is the view from Section 119 at Staples Center, which is directly behind the Clippers bench.