Clarets boss Owen Coyle wants to team Caldwell with brother Steven at Turf Moor in January, but Strachan has had a major influence on Caldwell's career.
If (in January) Burnley happen to be facing relegation from the Premiership ... and Boro look to be heading in the opposite direction ... Caldwell could go to the Riverside.
Caldwell has 'shit in his own nest' at Celtic by constantly slagging off the club because they would not meet his contract needs.
Although nothing is official, Celtic fans know the former Newcastle defender is on borrowed time at Parkhead.
Strachan took the Scotland stopper to Parkhead from Hibs in 2006.