Free agency has started and Alex Ferguson reflects on Brock Osweilers surprise move to the Houston Texans from the Denver Broncos.The official start to NFL free agency is one of the crazier times of the American sporting calendar, and 2016 was no different with news that the Houston Texans had signed former Denver Broncos quarterback Brock Osweiler in a four-year, $72m deal.Houston have also added running back Lamar Miller from Miami Dolphins in a four-year, $26m deal, and Alex Ferguson assesses the two moves... Brock Osweiler Brock Osweiler showed promising signs in his starting appearances for Denver Osweiler - who was a perennial back-up for Peyton Manning after being drafted in the second round from Arizona State in 2012 - finally got his chance in 2015, and had a 5-3 record for 1,967 yards, 10 TDs and six INTS. He had a 61.8% completion percentage and 86.4 passer rating. His passer rating was good to be ranked 25th among qualified quarterbacks in the NFL.But the 25-year-old showed good leadership signs, right until he went out with a right knee injury. He never started another game again, thanks to the return of Manning and the subsequent Super Bowl victory that came.The Texans needed a quarterback, and needed one badly after the string of disasters this season [we blame you Brian Hoyer, Ryan Mallett and Brandon Weeden], who were all given time to get the offense going - with a great weapon in DeAndre Hopkins - and simply couldnt. So they turned to their wallets and paid a kings ransom for Osweiler. The 25-year-old had served as understudy to the recently retired Peyton Manning You could definitely argue that Osweiler doesnt have the experience to command such a salary, but what he will bring is a good arm and a high ceiling - the NFL buzzword for potential. We cant wait to see how he hooks up with Hopkins.On Denvers side, Executive Vice President John Elway could well be furious after losing two quarterbacks within a week. He must have thought that Mannings retirement would mean a definite stay decision for Osweiler, but now they are looking for a quarterback. Tim Tebow?Another person whos not going to be too happy is NFL Draftee Christian Hackenberg, who was coached at Penn State by Houston head coach Bill OBrien. He was thought by many to be coming to Texas as a second-to-third round pick. Oh, and other NFL Draftees - and their agents - arent going to be too happy either.Lamar Miller Lamar Miller did not live up to his big reputation last season Lamar Miller was perhaps one of the most heralded running backs to start the 2015 season, with fantasy analysts believing strongly that the player was due for a breakout season, thanks to his great running skills as well as his ability to catch, too.And while his season wasnt a major failure, it certainly didnt hit drop any jaws. Miller ended the season with 872 yards and 8 TDs, and he had 397 receiving yards and 2 TDs. He only managed to have three 100 yard + days [his biggest was against Houston, where he went off for 175 and a touchdown as well as 61 yards receiving and another score], and only three more in the 50-99 yard range. Thats disappointing. Texans coach Bill OBrien will be hoping that Miller can make a big impact His receiving yards - which many thought would be a huge difference maker - really wasnt. He only had 397 receiving yards [good for eighth amongst NFL RBs] and two TDs. But he showed potential - and thats what OBrien will be looking for just in case Osweiler cant throw the ball downfield 50 times a game. You can expect dump-offs and slants to Miller to try and open it up.The problem for Miller is that hes got big shoes to fill - the Texans cut long-time RB Arian Foster and hes going to be expected to be a more-than-viable replacement.Where does this leave Miami? There are good RBs coming up the draft [like Ezekiel Elliott, Derrick Henry etc], so the Fins arent going to be lost without Miller. But it certainly doesnt help. And they seem to be focusing on their offense, anyway.Also See:Osweiler to join TexansFive key NFL free agentsCesar Azpilicueta Chelsea Jersey . Klitschkos management company says the bout will be the Ukrainian fighters 25th world championship fight. 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