Under his leadership , the IAAC turned into a national track power .
Swedish - born Ernie Hjertberg , himself a US track and field champion , was appointed coach and recruited outstanding non-Irish athletes .
Under Ernie Hjertberg 's leadership , the IAAC turned into a national track power .
Swedish - born Ernie Hjertberg , himself a US track and field champion , was appointed coach and recruited outstanding non-Irish athletes .