Only 10 Interceptions
First and foremost, Philip Rivers has to cut down the turnover number. Throwing 20 interceptions is not going to take the Colts back into contention in the AFC. He will need to cut that down considerably.
Around 10 interceptions would be a reasonable number. Rivers has a top-notch offensive line, a solid running back in Marlon Mack, and a good receiving corps. T.Y. Hilton, Michael Pittman Jr., Parris Campbell, and Zach Pascal are all solid option.
In addition to those weapons, Rivers will have two solid tight ends to work with. Jack Doyle and Trey Burton are both quality players. Rivers has the pieces, he just needs to make the right decisions.