title: Quartz thread pool replace with Pooled Executor Service
body: <p>Is there a Quartz Thread Pool Implementation (http://javasourcecode.org/html/open-source/quartz/quartz-2.0.2/org/quartz/spi/ThreadPool.java.html)  with Pooled Executor Service ?  instead of using SimpleThreadPool which is using work thread model. </p>
  
  <p>Thanks,</p>
  
  <p>BMIS13</p>