With the splashes made by Hartline and promise shown by Laurenitis who would be your dream guys to return as coaches. 
Thinking about players at or near the end of their NFL time but otherwise young and hungry.

Fickell and Vrabel did it earlier. 
 

A Cam Heyward coaching DL would be up there. Not as big a splash as a Bosa but more likely IMO. 
 

Taylor Decker on OL?

Antoine Winfield for DBs? Maybe Malcolm Jenkins?

Carlos Hyde or Beanie Wells at RB?

sorry if this is an old topic