Is drafting a "tweener" smart ?

Drafting someone that has the size & speed to possibly play at two different positions, smart or is it a act of desperation on a coach and GM?
CB/S LB/DE OG/OT ect.......

We do it all the time and it seems to workout okay for us.

They have to check all the right boxes and even more so for D-lineman. a D-lineman tweener NEEDS to have a good first step, a physical/tenacious style of play, and some length be it height or just arm length. If a player don't check all three in some way then it will be impossible for the player to contribute in Seattle's scheme. I would'nt know about tweener Safety/corners but Desean Shead looks promising.

"Tweener" usually refers to defensive players. On offense, they'd call a guy caught between roles "versatile." It's usually seen as a good thing on offense because being versatile can help force mismatches and unless the offensive player is a lineman, his being overmatched by position mismatch won't kill the team.

The only tweener label guys Seattle drafted in recent memory who worked out well were Brandon Mebane and Red Bryant. I always thought Mebane was a really safe pick as a 1 tech anyway so his tweener label was dubious, IMO. And Bryant only found a degree of success when paired with a visionary head coach.

Typically, if a defensive player is labeled a tweener, say a guy like Dee Ford, their stock suffers and in some cases teams will take them completely off their boards. Coaches would much rather have a guy who is elite at one job rather than being passable at best for two jobs, usually only one of which is needed by that team.

Tweeners are usually bad bets, the exceptions are the Justin Tucks and Michael Bennett's who have the rare ability to be outstanding at multiple positions, or the guys like Mebane who aren't really tweeners at all but are miscast as such because of surface level details such as body size or usage.

Irvin was a tweener. Legree was considered a tweener. Greg Scruggs was a bit of a tweener.

Pete seems to follow two seemingly divergent strategies. He like 'specialists,' players that are so good at their position that they tilt the field.

OTOH, he like versatile players that can play at least adequately at another position or more other than their primary role. I remember a quote from Tom Cable from a couple of years ago in which he said he likes to play his O-line guys at more than one position to familiarize them in case of injury. I know a lot of people like to complain about the O-line, but I think it has been pretty good the past couple of years, even when in the midst of injury concerns that would cripple most teams, including some of our former Seahawks teams.

Our defense kind of requires "tweeners." The LEO is basically a LB-sized player who can play with his hand down on the line of scrimmage.

Kam Chancellor was considered a tweener.

Michael Sam is an example of a tweener that I think most teams will stay away. He's a camp invitee IMO.