I was having a debate with a fellow Packers fan on a UK NFL site about Mason Crosby's performance to date. He argued that Crosby's overall line was skewed by McCarthy's insistence on using him for very long field goal attempts. However, I think believe there's a greater problem.
I like Crosby and recognise there's very little out there that could currently replace him. His huge leg makes him an asset on kickoffs (though he struggled with hangtime last year), but it also impacts on his field goal accuracy.
In short, whilst doing a bit of digging I came across these statistics which are pretty striking. Crosby's career stats split by distance:
20-29 Yards
16 attempts, 16 made field goals, 100.0%
30-39 Yards
25 attempts, 21 made field goals, 84.0%
40-49 Yards
21 attempts, 14 made field goals, 66.7%
50+ Yards
12 attempts, 7 made field goals, 58.3%
The long-field goals don't help, but he's not exactly accurate inside 40 yards, which should be automatic for an NFL kicker.
His career statistics show he's been pretty much below average (I've seen 85% used a benchmark for a good kicker) on attempts above 30 yards in distance.