Hear me out. I am strongly considering not drafting a Def or a K and just picking one each up prior to week 1. I've done it sucessfully with PK, but my first year considering with DEF. Here's my thought process.
Freeing up those roster spots allows me to take flier picks that could go well for me. Last year Miles Austin was my last round pick that would have been a PK. Dumb luck, but worked out tremendously. I basically look at my roster prior to week 1 and drop my weakest option.
The Saints and Bengals were undrafted last year and were very good off waivers, I'm banking I can identify those D's this year.
If your rules allow it, I dont see a problem with it.. I have done that with my kicker slot many times... Then I always try and work a "2 for 1" style trade to upgrade a position for me and free up a spot over the next few weeks. If not . I drop my weakest guy at the deadline and get my kicker....
It's a fine strategy. I saw something on ESPN about how most of the top 5 picked D's usually fall out of the top 10 by years end. I personally would go nowhere near the Jets, Vikings or Packers in the midrounds. I usually take a D in the last two rounds and don't select a kicker. Although, I do think the 49'rs D is a steal around rnd. 11-12 this year. Cupcake schedule. Big Playmakers. Not many weeks where you can't play them.
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I can see doing one of them, but not both. To me a kicker is a dime a dozen and the difference between the #1 k to the #10 K is usually about 1-2pts per week, so you are safe with that. I may grab my defense late and then possibly look to add/drop a defense when you can spot the NO defense of 10'. Good luck.
I don't mind it, especially if you are in an early draft. Kickers are a total crapshoot, and there are enough offenses in the NFL currently that are either turnover prone or just plain awful that you can play matchups with defenses all year and probably outproduce people that took MIN, GB, or even NYJ. (The Browns, Lions, Jaguars, Bucs, Panthers, Bills, Chiefs, Raiders, Cardinals, Seahawks, Rams, and maybe even the 49ers are all teams I'd feel ok starting almost any defense against - that's 12 teams! And I'm not even counting the Steelers for the first four weeks, or the teams like the Bears that will score points but give up lots of sacks and turnovers. It is looking like a GREAT year to play defense roulette.)
For example, in Week 1, Chicago (frequently undrafted) plays Detroit, Arizona (almost never drafted) plays St. Louis, and San Diego (went undrafted in my league and I picked them up when I saw this) has their first six games against KC, Jacksonville, Seattle, Arizona, Oakland, and St. Louis!
I would try to get a decent D early. This works better in 10 team league.
Not drafting a kicker and waiting to pick one up is a great move.
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I hadn't really thought too much into this until you posed the question. And like the others, I think I'd try it for 1, but not both. By not drafting either a D or K, I think you're leaving too much up to chance. I DO however like to play matchups weekly for my D.