so using your own math.... im wrong
but to be fair the last time i checked it was before we had the 4 game win streak
So in that regard, you are correct that in games started, if we go back to the New England game as the last one, our average per game, regardless of subs, that we allowed less goals. However, per minute, we were still better without Pirlo.
Goals allowed average in games started by Pirlo:
1.125 (9 goals in 8 matches)
Goals allowed average in games Pirlo doesn't start:
1.5 (9 goals in 6 matches)
*Did not include the US Open Cup match in this one, which would decrease the average in games not started by Pirlo
Goals allowed per minute with Pirlo on field:
0.014587 (9 goals in 617 minutes or 1.31 per 90')
Goals allowed per minute with Pirlo off field:
0.013997 (9 goals in 643 minutes or 1.26 per 90')
Additionally, goals scored stats below:
Goals scored average in games started by Pirlo:
1.5 (12 goals in 8 matches)
Goals scored average in games Pirlo doesn't start:
2.2 (13 goals in 6 matches)
*Did not include the US Open Cup match in this one, which would decrease the average in games not started by Pirlo
Goals scored per minute with Pirlo on field:
0.012966 (8 goals in 617 minutes or 1.31 per 90')
Goals scored per minute with Pirlo off field:
0.026439 (17 goals in 643 minutes or 1.26 per 90')
Goal Differential of -1 with Pirlo on field and +8 with Pirlo off field