How does Kevin Cash know whether he was tipping his pitches or not? It's usually something extremely subtle and difficult to notice. What a foolish comment by him.
It's just some bad luck, he's been ok. That being said, Seattle is where hitting prospects go to die. It wouldn't be surprising to see him struggle for a time.
A fixed Robbie Ray along with whatever pitcher we get at the deadline may be the biggest additions. Offense can only get us so far, as we've seen in the recent past.
He is quite fast once he is in full stride. Troy Glaus used to be like that too. He doesn't have the acceleration of a Davis or Espinal for stealing bases.