The Tennessee Titans are looking for at least three first round picks, or equivalent value, in return for the first overall pick. Equivalent value would mean throwing players into the trade package to retain future assets. If the New Orleans Saints were to make this trade, one of the players the Titans ask for would have to be Chris Olave. This is where the Saints should draw the line.
The Saints clearly like Cam Ward, but trading Olave in order to make acquire Ward would hurt the quarterback in the long term.