As the Chiefs gathered Monday for the first time in five days, they did so amid the latest changes implemented by their coaching staff. </p><p>The Chiefs had time to examine themselves last week, and they spent the bye week trying to identify what has caused their offense to be among the league&rsquo;s worst.</p><p>&ldquo;We did a lot of self-scout,&rdquo; coach Todd Haley said Monday during his weekly news conference. &ldquo;We needed that time.&rdquo;</p><p>Haley didn&rsquo;t address it directly, but the team used the extra time to further tweak an offense that just hasn&rsquo;t found rhythm since Haley fired Chan Gailey as offensive coordinator and took over the play-calling duties. </p><p>The Chiefs still don&rsquo;t have a rushing touchdown, Matt Cassel has been sacked 24 times in six games, and the offense has not scored more than two touchdowns in a game. Now running back Larry Johnson is unavailable this week because of a two-week suspension, the offensive line is hobbled in addition to being unreliable all season, and wide receiver Dwayne Bowe&rsquo;s problem with drops has returned. </p><p>So the Chiefs made more changes, all in an effort to further shepherd in something that looks like the offense Haley ran in Arizona &mdash; but with extra emphasis on protecting Cassel and trying to jump-start a unit that has been anything but intimidating.</p><p>&ldquo;We&rsquo;ve just got to do a better job across the board,&rdquo; Haley said, &ldquo;at blocking and running the football.&rdquo;</p><p>The changes won&rsquo;t be as glaring as the overhaul the Chiefs underwent in 2008, when Gailey reshaped the offense mid-season to customize the scheme to quarterback Tyler Thigpen&rsquo;s strengths. Brodie Croyle and Damon Huard suffered season-ending injuries in the same game, and Thigpen was forced into a starting role. It was important to keep him healthy, and to do that meant shifting to the spread. That allowed Thigpen to expand the pocket and improvise, if necessary, and it worked. The Chiefs aren&rsquo;t planning to reintroduce the spread or any kind of gimmick offense &mdash; just a more finely tuned scheme that allows Cassel to release the ball faster and get plays in quicker.</p><p>&ldquo;We&rsquo;re always going to play to our players&rsquo; strengths,&rdquo; Haley said.</p><p>But now, the Chiefs are trying to play less to their weaknesses. Their offensive line doesn&rsquo;t seem to be improving, even with the possible returns this week of left tackle Branden Albert and center Rudy Niswanger. Albert missed the last two games with a hurt ankle, and Niswanger suffered damage to a knee ligament in the loss against San Diego. The team initially thought Niswanger had blown out his knee, which would have ended his season. But because his knee didn&rsquo;t swell as much as the Chiefs expected, doctors were able to inspect Niswanger&rsquo;s medial collateral ligament and determine that the damage wasn&rsquo;t as severe as the Chiefs had feared. Haley has said there&rsquo;s a chance Niswanger could be healthy in time for this Sunday&rsquo;s game at Jacksonville. </p><p>When Albert and Niswanger return, they could face new blocking assignments and an adjusted playbook. The Chiefs already scrapped Gailey&rsquo;s offensive plan after Haley took over, and he effectively started from scratch after months had been spent teaching a certain way for players to run the offense. That put the Chiefs in hurry-up mode, and there aren&rsquo;t many at the team&rsquo;s headquarters who would argue that the adjustment went smoothly. The Chiefs needed time, and time was one of the things they lacked. </p><p>Haley said last week that the Chiefs&rsquo; top priority during their downtime was to figure out how to eliminate, or at least reduce their negative-yardage plays. Fewer sacks. Fewer penalties. Fewer running backs tackled behind the line of scrimmage. </p><p>Haley and his staff took a close look, and they discovered that there was more work to be done than they might have first thought. Still, Haley said the time was productive &mdash; and the offense emerged with a look that, perhaps for the first time, Haley feels comfortable with.</p><p>&ldquo;I feel good about how the bye week went,&rdquo; he said Monday. &ldquo;The guys came out energized today, and it looked like they got a little recharged. And now we&rsquo;ll see.&rdquo;