The best replacement for shanahan is belichick.

The best alternatives to shanahan are rated as following:
★★★★★  belichick
★★★★  iginla
★★★★  tkachuk
★★★  haynesworth
★★  al davis
★★  mcnabb
★★  sundin
★★  bill belichick
★  cowher
  mike holmgren
  community bank

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Speaking about shanahan, one probably shouldn't forget about robert griffin.

Other search terms related to shanahan and their ratings are:
★★★★★ robert griffin
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