Use same executor for blocking job

[Steve Ramage]

I was wondering if there was a plugin or a way to have a job that is executing and triggering sub jobs to use the current job executor. In some cases I have some jobs that are really just dummy jobs (for simplification and permission issues) that just trigger other jobs. In cases of high loads it's possible that this job triggers another job that has no free slot and waits. 

If there is no current way to do this, I guess the question is

1) Is it possible through the plugin API to achieve such a feat.

2) How difficult of a code change would it be to Jenkins core and/or writing a plugin to do this.

Steve Ramage