yes, he has a lot of influence. ST are a huge part of the game, even with the likelihood of decreased kickoff returns. Look at San Diego last year. Seely picked 3 guys it seems who made the team based on ST alone, and it will be there job, and Seely's, to help us win the field position game and to create extra possessions on turnovers.
Seely is regarded as one of the best in the business, and he's the assistant head coach to boot. While I'm not too big on Colin Jones, I have no problem with Seely's influence dictating that such a player makes the team. Now, if Jones continues to suck ass, we can revisit this topic.