Schwartz took over an 0-16 team,
First year 2-14 - rookie QB who wasn't good yet and missed 6 games
Second year 6-10 -- Stafford only played 3 games. Drew Stanton started 3
That is a noticeable improvement
He had a bigger hole to start than Campbell who had an experienced QB and a good offensive line.
Do you think this team is going 6-11 this year? They would need to go 5-5 the rest of the way. Not with that defense, or coaching.