http://netsarescorching.com/2009/10/...-jarvis-hayes/
On defense:
Opinions on Hayes’ defensive skills range from both ends of the spectrum. Nets officials have referred to Hayes as being one of their better perimeter defenders, and Draft Express describes him as a “solid defender who has average lateral quickness and strength.” Hollinger, on the other hand, describes Hayes as having “defensive shortcomings.”
Looking at statistics, there are both positive and negative indicators for Hayes. To his credit, the Nets defense last season gave up 109.3 points per 100 possessions with Hayes on the court and 114.9 points with him off the court. Teams had an eFG of 49.1 percent with Hayes on the court and 52.5 percent off the court.
As for negative signs, opposing SFs had an eFG of .535 percent last season against Hayes, good for a PER of 17.5. When you take into account Hayes’ PER as a SF of 11.0, that’s a differential of -5.3, which again brings the discussion back to the idea of whether or not Hayes is qualified to be a starter in this league.