Last night, the Bucs called Evan Meek to face the Cubs in the 7th, Joel Hanrahan in the 8th, and finally Octavio Dotel in the 9th.  Meek can touch 98 on the gun, sits comfortably anywhere between 94-96 mph, usually has a nasty slider, and typically does not have control problems.  Hanrahan is very similar in that he can get up around 97 mph, sits comfortably at 95-96, also possess a wicked slider, and has saved in the past, albeit with inconsistent results.  Dotel, on the other hand, touches 93 mph on occasion, sits between 90-92, and, as he admits himself, his success is primarily based on locating the fastball on the outer-half  of the plate.  He also has closed in the past, though hasn't done so in nearly 5 years, I believe.

My question:  Is Dotel the closer simply because thats what he was signed/brought into do and has had some success in the past?  Or, does the FO sincerely believe that he is ready to get 25, 26, 27th outs of the game moreso than the younger, more hard-throwing options in Meek and Hanrahan?  Put simply:  What does Dotel have that either of the other two don't have?  It cannot be 'stuff' as it is pretty evident that either of the other two possess more/better ways to get a hitter out, nor can it be control-based, as Dotel has walked and put on many runners over the course of the season.

So, what is the explanation?  Thoughts?