3-4 OLB vs 4-3 DE

Anyone who has been playing use a guy listed as an olb (because he plays in a 3-4) as a 4-3 end? It's a pretty straightforward football move for some guys, but I'm wondering if it's allowed on your depth chart and if anyone is seeing these guys undervalued/underperforming as "out of position." Thanks

You can pretty much play any defender anywhere with varying levels of effectiveness. As you mention the tradition between 4-3 DE and 3-4 OLB is relatively standard.