The Pittsburgh Steelers were hard at work helping Drew Allar improve his mechanics during rookie minicamp, but a former NFL general manager isn't so sure that those adjustments are going to hold up in the long run. During an appearance on 93.7 The Fan, Doug Whaley stated that he's concerned Allar , a third-round pick out of Penn State, is going to fall back on his old tendencies in the heat of the moment on the field despite the Steelers helping him head down the right path. "That worries me," Whaley said . "When the game is on the line, and the play on the field is really intense, you revert back to what got you there, and what you know in your original, and you can look at it with Tim Tebow. "They tried to fix his throwing motion, he went through all of this. But when it was game time, when it was crunch time, he reverted back to what he knows.…