"Isaac's the starter and then there's just competition from there; that's the great thing about training camp, the great thing about this business, it's just so stinking competitive", offensive coordinator Frank Reich said.
Smith, who many said entered the NFL with the body of a high school football player, became the butt of jokes in Philadelphia.
Barbre has instead been traded to the Broncos, the team announced. The Eagles drafted Derek Barnett out of Tennessee with the No. 14 overall pick in the 2017 NFL Draft. He appeared in only 37 games, recording 12 tackles, four sacks and zero starts. Barbre's fate might have been sealed when the Eagles signed Chance Warmack to a one-year deal. The 33-year-old had been with the Eagles since 2013.
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On the offensive line, Barbre's move (it was first reported as a release, later as a trade) comes a bit more as a shock as he was a valued and versatile offensive lineman who has started at multiple positions. It clears the way for a new starter to take the reins at left guard and grow accustomed to the role as training camp begins to ramp up for the Eagles.
Smith, the team's first-round draft pick in 2014, was released a few hours before he was due to report to the NovaCare Complex for the start of training camp Wednesday evening.
The move leaves the Eagles with 89 players on the roster and one open slot.
Philadelphia also signed linebacker Steven Daniels on Wednesday to a three-year contract. The Eagles saved $1.48 million in cap space and avoided playing him a almost $600K roster bonus that would be owed soon.