There are two weeks until the NFL Draft. Barring a trade up or down, the Los Angeles Chargers will select a key player and most likely instant contributor with the 21st overall selection. In writing this mock draft, I used PFF's mock draft simulator. My theory in this experiment had more to do with making an educated guess on what the Chargers will do in the first round and then proceeding to build out a draft from there. Of course, the nature of the draft is that not every position of need can be filled. Another piece is that of course none of us truly know what the Chargers' big board is.