ALAMEDA Carson Palmer threwthree interceptions in the Raiders 42-32 loss to TampaBay last Sunday and none were morecrushing than his second, which came with Oaklanddown just three points and led to the Bucs final touchdown.While Palmer was focused on practicing Thursday, notexplaining himself to the media, his offensive coordinator Greg Knapp took itupon himself to break down the mistakes.One of thedecisions was a bad decision by the quarterback; the other decision Id put onmyself, Knapp said. That last interception I wish Id called another play. Iput him in a bad situation. It was a seven-step scheme where maybe we wouldvebeen better off using a three of five-step scheme. We had done really good upto that point in that concept so I wish I had a better call for him to put himin that situation.Palmer threw 16 interceptions compared to 13 touchdowns in his 10 games withthe Raiders last season. In eight games so far in his first full campaign with Oakland, Palmer hasalready matched his touchdown total from last year and cut his interceptions inhalf.Knapp said that with Palmer, it all comes down to protection.If we give Carson good protection,hes going to be fine; hell make the progression read.---Cornerback Ron Bartell would be eligible to play Sunday ifhes activated to the 53-man roster, but its unclear if head coach DennisAllen and general manager Reggie McKenzie are ready to pull the trigger. Im going to look at him againtomorrow and really get a better feel for exactly where he is, Allen said. Weregoing to play him as much as we feel like we can play him, whenever that timeis when we decide were going to activate him. I feel good about where hesat.Defensive coordinator Jason Tarver had good grades to share on Bartell as well.Bartell has had a good week of practice, Tarver said. Didsome things well today. So Im excited to see him on the field.But could that be as soon as Sunday? Like a loyal employee, Tarver deflected.That falls up to coach Allen and Reggie, as I say a lot oftimes.---The NFL limits teams to a certain number of padded practicesper season. After the Raiders struggled to tackle the Bucs Doug Martin andplenty of his teammates last Sunday, Allen had his players don the padsWednesday in order to get back to tackling basics.We had the pads on for the firstpart of practice yesterday so we got a chance to use the pads a little bit andpractice some tackling, Allen said.Does that mean the Raiders are getting close to reaching the league-imposedlimit?Id hate to tell you exactly how many we got left, but were coming up prettyclose on the time when theres very few, Allen admitted.But after Martin ran wild in Oaklandfor 251 yards and four touchdowns, its hard to argue that theRaidersdidnt need the extra work.Now preparing for a similar back, though one with an even better track recordof success, in the Ravens Ray Rice, Tarver said his players need to learn fromtheir mistakes.Sometimes you learn what to do; sometimes you learn what not to do.---Allen said Willie Smith, Khalif Barnes and rookie Tony Bergstrom have all beenreceiving reps at right tackle this week and he wouldnt name his starter atthe position for Sundays game.All three of those guys haveworked, but again I got a pretty good idea what were going to do. But Im notgoing to make any decision or any announcement on that until after practiceFriday.Barnes, who left the Raiders second game in Miami with a groin injury, said hes excitedto see game action again after practicing for a second straight day Thursday.Ive never hadto deal with a long injury layoff, Barnes said. So it was something new forme, but fortunately I have good teammates and I got a chance to watch them andthe way theyve been showing how resilient they are the past few weeks andshowing that anything thats going on in the game, they never quit playing. Ikind of get to feed off them so thats one thing thats keeping me going. Imglad to be back and be a part of what theyve been doing.Barnes saidthat he first felt pain in his groin on a specific play in the second quarterof the Raiders loss to the Dolphins.I was going tocut off a linebacker and try to cut block him. I took that left step and itkind of split from there.So will Barnes be ready to play Sunday?Thatssomething you have to ask Dennis Allen. Ive just been out there on the fieldtrying to test the waters. I dont know anything about playing or anything likethat.