Look at the stats, Osweiler and Petty are about the 2 worst backup QBs we could possibly find. Gase doesn't want any stiff competition for Tannehill. Just scrubs to throw a few passes.
Exaggerate much? I'm sure you cannot even name half of the backup QBs in the league, yet somehow, you have them all ranked by quality.
NO TEAM brings in "competition" for a starting QB that they have confidence in. Jesus man, the ridiculous crap that gets posted on this site.......