Quintin Hughes, D:The No. 7 pick in the 2018 NHL Draft hasn't signed a contract and could end up back at the University of Michigan, especially with four left-shot defensemen already signed to one-way contracts. If Hughes, who had 29 points (five goals, 24 assists) in 37 games as the youngest player in NCAA hockey last season, does turn pro, the 18-year-old could become the most skilled defenseman on the Canucks, who struggle to generate offense from the back end. … Adam Gaudette, F: The 21-year-old didn't have a point in five games with the Canucks at the end of last season after leading the NCAA with 60 points (30 goals, 30 assists) for Northeastern and winning the Hobey Baker Award as the best player in college hockey. But Gaudettte, picked in the fifth round (No. 149) of the 2015 NHL Draft, looked increasingly comfortable in his late-season stint and could force roster decisions with a strong training camp. … Thatcher Demko, G: The 22-year-old will compete with Anders Nilsson. to back up Jacob Markstrom. Demko had a .922 save percentage in his second American Hockey League season and won his NHL debut March 31. … Olli Juolevi, D:The No. 5 pick in the 2016 NHL Draft had 19 points (seven goals, 12 assists) in 38 games in Liiga, Finland's top pro league, last season. Offseason back surgery and the number of left-side defensemen on the depth chart means the 20-year-old will likely start with Utica of the AHL.