Miami used a 5th round pick to take Reshad Jones who's been the starting safety in Miami this year. I'm not sure if it was the fifth rounder they got from SF
Nah, Reshad Jones went a dozen or so picks later. Miami used their pick at #145 on Nolan "Burnt Toast" Carroll.
but still I don't think you can link SF's success to Ginn in any way shape or form.
Sure you can, at least a little. He has definitely been a Godsend for a team that, prior to his arrival, had one of the worst return games in the league. I think you can add up SF's success to this point this way:
1) The team had more talent than most folks realized...it was just misused by the former coaching staff, or gelling together as units, in the case of some of the young talent.
2) Jim Harbaugh brought in some outstanding coaches to fill out his staff, from DC Vic Fangio, OC Greg Roman, QB coach Geep Chryst, Seely on special teams...all the way down the line. The coaching staff has done a great job of creating good game plans, preparing the team each week andf making adjustments during the game.
3) Frank Gore is 100% healthy for the first time since roughly 3rd grade, and he runs behind an O-line that's invested lots of high draft picks in the beef market. Joe Staley, Iupati, Rachal, Snyder...when these guys aren't playing football, they're posing for road-grader equipment catalogs.
4) The development of NaVorro Bowman into a tackling machine (5th in the NFL). Between Patrick Willis and Bowman as our inside LB duo, if you want more than a couple of yards, you better run to the edge...and one of them will still be there waiting for ya.