Chip Kelly loves Brent Celek, who is a hard-nosed, throw back NFL tough guy who will do anything for his team. Celek has put up offensive numbers in the past and stays on the field for a lot of plays due to his blocking skills. With a largely unproven group of WRs heading into this season, the TEs could see an increased role as long as their remains stability on the offensive line.
Even though many thought Zach Ertz would break out last year, the signs certainly point to him doing that this year. This could limit Celek's offensive production once again. Last year, the offensive line was banged up and the team used Celek's blocking ability more than his offensive skills, which isn't going to get owners many fantasy points for their team.
Celek could have some value if the line stays healthy and the team uses more two-TE sets, but even so, Ertz is likely to take on the role as the better offensive weapon in this offense. Celek is a risky draft pick even as a second TE in a deeper league until we see more of how he's going to be used.