The San Francisco 49ers are clearly looking for more help for Colin Kaepernick in the passing game.They were linked to several receivers during the first week of free agency, including Julian Edelman, Hakeem Nicks and Emmanuel Sanders. None of the pursuits materialized and if the 49ers do add a receiver in free agency, it likely would be for depth unless trade talks for DeSean Jackson develop. The 49ers are expected to draft a speed receiver during the early rounds.