Like i always say, put Bargs beside a solid, defensive Center and he'll probably, and i say it again, PROBABLY, will be alright. Dirk has Tyson, Garnett had Perk, Bosh has Anthony, so on and so forth. But it doesnt stop there, you need to get a solid SF too SG and PG.
No, he won't be alright. The opposing team will still attack him with an endless onslaught of pick and rolls and continue to get easy scores. Furthermore, now that he's exclusively matched up with opponents who are much faster and more athletic than him, he'll be left in the dust.