No, Ogunleye is too small to play 3-4 end. 3-4 DEs are pretty much 300 pounds, give or take. Look at Kevin Carter(6'6" 305), Vonnie Holliday(6'5" 295), Kevin Vickerson(6'5" 305), Manuel Wright(6'6" 315). Not to mention we were reportedly interested in Trevor Pryce(6'5" 295) when it seemed like he was not staying with the Broncos.
Ogunleye would play 3-4 OLB, where alot of smaller 4-3 DEs in the 250-260 pound range typically shift to.
We wouldnt really have room for him in our defense, because Saban likes to shift from a 4-3 to 3-4. To do that, you've got to have two-way personnel. Neither Taylor nor Ogunleye are real good fits to play 4-3 linebacker, so that isnt really a good fit. Some 3-4 Defenses seem to like playing 2 smaller DE's at linebacker as opposed to a DE/regular linebacker, but Saban doesnt seem to be one of those coaches.