After the San Diego Chargers threw away a huge 21 point lead against AFC Championship contenders Houston Texans, Chargers fan Jamie Sewell points out three of his thoughts and opinions.

1: Philip Rivers can get back to his best

Despite throwing a terrible pass on a third and long that forced to Chargers to punt, and ultimately caused the possession that lost them the game, Rivers had an impressive game.

In true West Coast Offence style - reknowned for short passes and running plays - Rivers completed just one deep pass all game. He also had under 200 yards passing, compared to Matt Schaub getting over 300.

Many people forget that Rivers was also able to throw four touchdown passes against one of the toughest defences in the league. Some of them were very short passes, but four touchdowns still ties his personal best - set when he was in his prime and in the top 5 QBs in the league.

While losing two solid targets (Denario Alexander is out for the year, and Robert Meachem is back at the New Orleans Saints), Rivers was able to spread the ball around, and targeted Eddie Royal a lot more than last year, who repaid the faith by getting two touchdowns, putting the Chargers up 21 points.

While Rivers did have a terrible fourth quarter, and threw an interception, expect him to build on that first three quarter performance in the coming games.

2: Old habits are coming back to haunt the Chargers

This isn't the first time the Chargers have thrown away a big lead against a good side. Just last season, the San Diego Chargers were 24-0 up against the Denver Broncos at half time.

Cue them giving up 35 points in the second half and losing the game. In that game, Rivers threw four interceptions. While nothing nearly as bad went on this time, the fact remains that the San Diego offence falls apart in the second half far too often.

Indeed, last season Mike McCoy, the Chargers new head coach, was on the winning end of that game. The former offensive co-ordinator managed to help notch up 35 unanswered points.

Surely he, of all people, should be able to stop the Chargers making the same mistake again? Although it seemed he had coaxed Rivers back to prime form, in the fourth quarter nothing went right for the entire offence.

When the offence does crash and burn, the defence isn't far behind. San Diego seem to have a problem with simply focusing throughout all four quarters.

Either that, or the team's fitness is seriously lacking - potentially a much bigger problem.

3: The Chargers have enough natural talent to avoid a losing record

While the Chargers haven't made a playoff appearance since 2009, simply an 8-8 record would be a sign that the team is progressing.

That should be easy for them. Although they did through it away, leading the Texans by 21 points is no mean feat.

In fact, Ryan Matthews touchdown on the opening play of the game for the San Diego offence tied his total TDs for last year. Rivers matched his own personal best as mentioned before, and D.J. Fluker had a solid debut, protecting Rivers as best as he could.

Manti Te'o, another rookie, didn't feature in that game due to injury. However, the LB is a perfect fit for the Chargers defensive scheme, and he should be able to give the Chargers a much needed boost at the position.

Former Pro-Bowler Dwight Freeney is past his prime, but he's still a top quality player. He should be able to contribute to the Chargers defence when it matters most.

With a Week 2 matchup against the Philadelphia Eagles coming up, it will be easier to judge the Chargers then - after all, what better way to test the fitness of your team and their defensive capabilities than by putting them up against one of the most explosive gameplans in Football history.

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