Richmond development coach Sam Lonergan says he's excited to see what Riley Collier-Dawkins can produce in 2020 with a year in the system now under his belt. 

While Lonergan has been impressed by the "fantastic mix" of second-year players on the Tigers' list, he said Collier-Dawkins had been a standout on the Gold Coast pre-season camp. 

"(He's) flying at the moment, I’ve been really impressed with the way he's attacked the pre-season," Lonergan said. 

"His body is in great shape. He's improved on last year, he finished the year strong and he's launched into the start of this season in really good shape."

Lonergan singled out Thomson Dow, Richmond's first selection in the 2019 NAB AFL Draft, as another Tiger ready to hit the ground running in 2020.

"He's moving really well at the moment. His body is in really good shape," Lonergan said.

"His ability to use the ball by hand once he gets it and create opportunities for his teammates around him and bring them into the game is fantastic, and that's really standing out for him at the moment."

Following fabled 2019 seasons, Lonergan believes there's no ceiling to what second-year Tiger duo Sydney Stack and Marlion Pickett can achieve off the back of their first full pre-season at the Club.

"Those two players are exciting prospects to the club and I'm sure we're all going to see a lot of football in the Yellow and Black from those guys," he said.

Lonergan, a former Tiger and Bomber, arrived at Tigerland in November as a midfield development coach, working predominantly with the first to fourth year players both on and off the field. 

"For the first-year players, a really key thing for us as coaches and as a club is to make sure (they develop) their relationships with their teammates and their coaches and staff," he said.

"Just understanding how their teammates operate, and their teammates also understanding how they operate as individuals and young men coming into the system.

"Then over the next three to four months, they build their football into games and become really strong individuals with their own strengths to focus on."