Four years, $18 million for C.J. Spiller

On Saturday, the Saints signed running back Mark Ingram to a four-year, $16 million deal.  They sweetened the pot a bit for their latest addition at the position. Per a league source, running back C.J. Spiller signed a four-year, $18 million deal with the Saints.  The contract includes a $5 million signing bonus and $9…