Roster + Rookie Draft

Had our rookie/FA draft recently. I got Corey Coleman (1.05), Devontae Booker (2.05), Malcolm Mitchell (3.05), Coby Fleener (4.05) and Chiefs D in round 5. This sets my roster up like this

QB: Aaron Rodgers RB: CJ Anderson, Mark Ingram, Jerick Mckinnon, Jeremy Langford, Devontae Booker WR: Antonio Brown, Amari Cooper, Donte Moncrief, Kelvin Benjamin, Stefon Diggs, Corey Coleman, Phillip Dorsett, Michael Floyd, Josh Gordon, Allen Hurns, Malcolm Mitchell, and Emmanuel Sanders TE: Coby Fleener

I have depth at WR but am thin at RB and TE. Anyone I should be targeting? Our league is shallow at 10 teams and 20 roster spots so there is some talent on waivers. I need to cut someone for a kicker before week 1. Go for it all this year or wait one more year?