No.
Alexander had 5 total tackles as did David (and as did DB Conte and LB Lansanah). I looked at the stats here at one point midway thru the 1st half, and Tennessee had run the ball on a grand total of two plays (and they were up 28-7). There ended up being 45 plays against TB with a tackle opportunity (13 completions, 32 runs). That's pretty low. Both LBs should have done better with all the runs in the 2nd half, but opportunity just wasn't there overall last week. It will get better going forward.