I don't know what the hell Shanahan was doing letting Purdy play with 1 starting lineman, a 4th string running back, 3rd and 4th string tight ends and none of the 49ers top 5 receivers against the Saints starting D. What value did he and the team derive from having him get hit 3 times, pressured 8 and having 2 miscommunications where receivers ran the wrong way?

It's funny because after the game I saw someone post Purdy's stat line and the guys that played with him and they said something to the effect that "Shanahan wanted to remind Purdy what it's like to not play with all pros when he comes asking for 40M a year".

Honestly, there is a non zero chance that is true.