Spikes is basically a DL playing off the line of scrimmage on some plays. He can't cover anyone fast, but is great at stopping the run. Saying spikes is slow, but is a really productive linebacker in the NFL is not exactly true. He's a specialist that can be effective at eating up blockers and making plays on runs up the middle. He is definitely not a 3 down player that can be effective against both the run and pass. I'm a patriots fan and like having him on the team, but he is definitely not the type of player you want to take in the first, and in most cases the 2nd round. a similar player would be a really good 3rd or 4th round pick if he's playing with a good group of linebackers. I think Teo will be a similar linebacker in the NFL that is a little worse against the run, but a little better in coverage. If a team takes him in the first round, than I feel bad for their fans. I think Sio is more of a wild card. If he turned out to be a pro bowl player 3 years from now, than I don't think anyone would be shocked. If he's not quite good enough to stay in the league past his initial contract, than I don't think that would be crazy either.