The Rams are exercising the fifth-year option for Aaron Donald, but they won’t be doing the same for another 2014 first-round pick. Offensive tackle Greg Robinson, taken No. 2 overall that year, will not have his 2018 option picked up, Gary Klein of the Los Angeles Times tweets. The fifth-year option is guaranteed for injury only, but that’s not a risk the Rams are willing to take. 
Robinson entered the league with huge promise, but so far he has been a massive bust. Last season, he was assigned a dreadful 38.0 overall score by the metrics at Pro Football Focus, ranking him as one of the seven worst qualified offensive tackles in the NFL. He had roughly similar showings in his previous two campaigns.
This year, the Rams are moving Robinson to the inside with the hope that he can finally produce. Free agent pickup Andrew Whitworth will hold down the left tackle spot while Robinson will have to fight for playing time behind projected starters Rodger Saffold and Cody Wichmann.
Just as the decision to trigger Donald’s option was a no-brainer, the same goes for the decision to decline Robinson’s option.
A point of correction…
The Rams are not planning on moving Robinson inside, they’re planning on moving him to RT and moving Havenstein inside to RG.
just sorry!