What's the argument for not DFAing White?
My argument would be, "What's the rush?"
White, Kemp, Diaz & Guerriel have all struggled to this point in the season, but a month is all we have played. No reason to think any of them can't turn it around.
I realize Kemp & Diaz are more valuable because of their ability to play multiple positions but White posted a line of: .276/.354/.533 in 66 games (210 ABs) last season. It is only one game, but we are leading the division, and done so even though it has been against a fairly tough schedule (as others have posted). So I'm thinking there is no reason to change anything, yet. Let Alvarez get more PT in the OF and let White get a few more ABs to turn things around. If he's still shitting the bed in 3 or 4 weeks then I'll agree with you.
One of the things I love about the Astros organization is they tend to play the long game with players. Sometimes you'll get burned doing this but overall I think it pays dividends as players know they will be backed (to a certain point) and are given fair shots to succeed or fail.