ARLINGTON, Texas -- It's Friday and that means we take stock of who's playing well and who's not right now for the Texas Rangers. Here's a look:

STOCK UP

Craig Gentry: He's taken advantage of increased playing time because of injuries. He has started six of the last nine games and is 10-for-21 (.476), including a career-high five hits in San Francisco on Friday.

Matt Harrison: He had won four straight before getting a tough no-decision Wednesday and has not given up a run in his last 16 1/3 innings. That includes a complete game shutout against San Francisco.

Joe Nathan: The closer has 13 saves and a ridiculous 31 strikeouts and two walks. That's Dennis Eckersley territory.

STOCK DOWN

Scott Feldman: The starter isn't getting any luck, but he's also not making any luck either. He admitted Thursday that he's got to finish batters off and minimize big innings despite how his defense may play behind him. He's 0-6 this season and the first pitcher to lose his first six decisions of the season since C.J. Wilson in 2005.

Offense: It's been better than it was a few weeks ago, but still isn't clicking the way it did earlier in the season. The club isn't getting the big innings and putting up consecutive extra base hits to really put more pressure on the opponent.

Yoshinori Tateyama: He gave up eight runs in 2/3 innings pitched vs. Seattle on May 30 and since his recall May 21 (because Neftali Feliz went to the disabled list), the reliever has a 11.88 ERA. He gave up two runs Thursday.