As usual when everyone stakes out dramatically different positions, the truth lies somewhere in the middle.
We DO need Dunn's run production, streaky though it may be. We have a feast or famine offense, lead MLB in HRs, and yet have the worst record in baseball.
Dunn has struck out way more than most hitters with runners on base, and in scoring position. Yet, all those those walks do jack up his OBP to partially make up for world record strikeout numbers.
I also think his defense is a little better this year. He has only made three errors in 117 total chances(.974), where last year he had 12 errors in 298 chances.(.960). Don't like traditional fielding stats? His zone rating has gone up to .840 this year compared to .815 in 2006. (Zone rating is the percentage of balls fielded by a player in his typical defensive "zone," as measured by STATS, Inc.) Dunn is 5th out of 12 National League left-fielders in zone rating....see THIS LINK
The one thing we would all like to see is for him to shorten up his swing with two strikes and runners on base, and make contact a better percentage of time. Strikeouts almost never score runners.
With runners in scoring position, Dunn is hitting .215/.329/.369, and has struck out 27 out of 65 ABs this year(.415 K rate). With RISP and 2 outs, he is hitting .182/.308/.303, and K'd 18 out of 33 chances(.545 K rate). With nobody on, he is htting .296/.382/.612, and K'd 48 out of 152 times(.316 K rate). Stats from ESPN
What exactly causes this big drop? Is it nerves? Pressing too hard? Lack of focus with base-runners distracting the pitcher and Dunn?
By comparison, lets look at those same stats from supposed Mr. Clutch, David Ortiz. With RISP, he is hitting .371/.464/.629, with 13 Ks out of 70 ABs(.186). With RISP and 2 outs, Ortiz gets even better: .387/.486/.710, and a K rate of 3 out of 14 (.214). Overall, Dunn currently leads Ortiz in RBIs, 52-48, but Ortiz really is clutch, and Dunn really does choke when we need contact.
I STILL think this could be fixed, and even if not, Dunn has real value.
BTW, his two run homer tonight may have made more difference than you think. It enabled Weathers to go directly at the batters in the bottom of the 9th, and not worry about a solo HR from Philly. Much better to be up 9-6 than 7-6.