It was back to the bottom of the mountain—as quarterback Tom Brady would say—for the reigning Super Bowl champion New England Patriots, who opened up their first week of training camp. There were several familiar faces from last season, many new faces and even faces from the past.

Tom Brady to Randy Moss. Even though it’s just for fun, they still have it

🐐 ➡️🐐💣#PatsCamp pic.twitter.com/f2yU0RgaM8 — The Camera Guys (@NBCSCameraGuys) July 27, 2019

Turnover is a common occurrence for every team each season, including the Patriots, but the path back to the Super Bowl could be an even steeper climb for Brady and company in 2019.

That fact hit hard when watching the offense operate without legendary tight end Rob Gronkowski, who retired in the offseason. There have been numerous teases of him potentially returning to the team, but the first week of practice was proof the Patriots will have to figure out a way to move forward without one of their most dominant players.

More importantly, Brady will have to move forward with a completely new group of receivers. A serious problem that would constitute as a panic situation for other quarterbacks in the league is simply another day at the office for the greatest to ever play the position.

Here are five takeaways from Week 1 of Patriots training camp.

Gilly Island is no one-hit wonder

Rarely have quarterbacks even considered looking in Stephon Gilmore’s direction on the field, and when they do, bad things tend to happen.

Brady and Dorsett couldn’t connect on a long ball against Gilmore. QBs are 0 of 6 targeting Gilmore through eight practices. — Jeff Howe (@jeffphowe) August 2, 2019

Gilmore’s elite potential has never been questioned, but it has also never been fully realized until his breakout 2018 season. Not even Jalen Ramsey and Patrick Peterson had a better year than Gilmore, who rebranded himself as the new warden in the league putting receivers on lockdown.

That otherworldly dominance is continuing on the training camp practice field with Gilmore blanketing receivers to the point where quarterbacks are looking the other way. It makes sense considering he was recently voted into the NFL’s Top 100 players by his peers as the best corner in football.

His mere presence in the defensive backfield, along with J.C. Jackson, the McCourty twins and Patrick Chung, gives the Patriots arguably the best secondary in football.

Go ask the Los Angeles Rams if they disagree.